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整数简便运算专项练习 600 题(有答案)
(1)25×125×4×8, (24)5400÷(50×27),
(13)125×88,
(2)2005×2004÷4, (25)45×45+45×55
(14)2011×99+2011,
(3)55×66÷(11×11), (26)37×41﹣37
(15)49﹣75+151﹣25,
(4) 25×(19+19+19+19), (27)162+89﹣62
(16)(125+9)×8,
(5)99×99+99, (28)71×25+71×76,
(17)3.67×25×4,
(6)37×39﹣29×37, (29)125×32×25,
(18)28+53l+72+469,
(7)18÷27÷6×27, (30)398+167+102+333,
(19)49×102﹣2×49,
(8)586×124+29×586﹣586×53,
(20)833﹣243﹣457, (31)1400﹣386﹣614,
(9)
28×5+2×4×35+21×20+14×40+8×62,
(32)794﹣198,
(10)125×32, (21)41000÷(41×5),
(33)68×25,
(22)4200÷25,
(11)2008×99+2008, (34)6756﹣193﹣207,
(23)280×36﹣360×18,
(12)77﹣75+23﹣25, (35)72×125,
整数简便运算--- 1(48)726+53+74﹣353
(36)97×360+3×360, (61)98+376+2,
(49)735﹣248﹣152
(37)44×25, (62)25×97×4,
(50)4500÷4÷25
(38)1000﹣525+125, (63)137×38+63×38,
(51)32×27+73×32,
(39)402﹣27+198, (64)300÷25÷4,
(52)1260﹣432﹣568,
(40)39+261+61, (65)125×(80+8),
(53)25×62×4,
(41)2010×9+2010, (57)872﹣354﹣246,
(54)125×88,
(42)257﹣65+43+165, (57)25×64×4,
(55)17×243+17×56+17,
(43)32×25×125, (58)72×102﹣2×72,
(56)25×32×125,
(44)384+196+216+104, (59)1002﹣5+98,
(57)125×32×25,
(45)8×(125+25)×4, (60)569+68+132+31,
(58)132×77+22×132+132,
(46)78×57﹣78+78×43, (61)38×25×4,
(59)1139﹣(350+139),
(47)(6+8)×125 (62)2300﹣165﹣35,
(60)1170÷9÷13,
整数简便运算--- 2(63)125×(8+4), (88)428×78+572×78,
(76)415﹣176﹣24,
(64)3200÷25÷4, (89)250+255+260+265+270,
(77)829+37+71+63,
(65)23×32+68×23, (90)1041﹣(41+328),
(78)125×89×8,
(66)25×204, (91)125×54﹣46×125,
(79)428×78+572×78,
(67)56×32﹣46×32, (92)99+99×99,
(80)101×92﹣92,
(68)8+2﹣8+2, (93)329﹣186﹣14,
(81)907×99+907,
(69)25×4÷25×4, (94)25×37×4,
(82)274+299+201+326,
(70)726﹣(526﹣150), (95)720÷16÷5,
(83)65×99+65,
(71)286+198, (96)403﹣198﹣2,
(84)38×42+38×58
(72)314﹣202, (97)76+149+24,
(85)415﹣176﹣24,
(73)526+301, (98)154﹣(54+98),
(86)829+37+71+63,
(74)223﹣99, (99)37×64+37×136,
(87)125×89×8,
(75)98×58+58+58, (100)216+305,
整数简便运算--- 3(113)135﹣87+65﹣13,
(101)25×32, (126)84×72+84×29+84,
(114)15×4×25,
(102)47+236+64, (127)6240﹣3885﹣1115,
(115)1992+144﹣992,
(103)6×(15×9), (128)25×13×4,
(116)78×101,
(104)402+539, (129)99×36+36,
(117)69+11﹣69+11,
(105)43+78+122+257, (130)351+188+12,
(118)25×64×125
(106)25×(26×4), (131)88×125,
(119)107×73﹣7×73
(107)25×44, (132)720÷16÷5,
(120)39×101,
(108)354+(229+46), (133)317×15﹣17×15,
(121)75×299+75,
(109)(125+7)×8, (134)(125+7)×8,
(122)720÷16÷5,
(110)327+64+273+46, (135)3200÷25÷4,
(123)456+328+672+44,
(111)645﹣58﹣142, (136)327+64+273+46,
(124)57×101,
(112)332×4+68×4, (137)639﹣58﹣142,
(125)87×99+87,
整数简便运算--- 4(138)25×137×40, (163)(125×39)×8
(151)186+82+18,
(139)4200﹣1934﹣1066, (164)6958+1998,
(152)25×(4×97),
(140)290×54+29×460, (165)(81+108)÷27,
(153)8×(25+20),
(141)46×102+308, (166)3254﹣599﹣254,
(154)24×56+44×24,
(142)25×137×4, (167)26×8×125,
(155)700÷4÷25,
(143)38×101, (168)4200÷15÷2,
(156)39×49+39×51,
(144)68×200×25, (169)25×33×4,
(157)108×25,
(145)101×87﹣87, (170)25×29×4,
(158)25×125×2×4,
(146)56×67+33×56, (171)598×101,
(159)56×99+56,
(147)9+498+102+211, (172)125×48,
(160)
124×75﹣124×72﹣124×2,
(148)1305+1238﹣405, (173)105×32,
(161)104×39﹣39×4,
(149)2452﹣(75+452), (174)4×43×25,
(162)28×99+28
(150)245﹣65﹣35, (175)109+127+73,
整数简便运算--- 5(188)4800÷16÷5,
(176)608﹣154﹣146, (201)275+364+636+725,
(189)816﹣285﹣15,
(177)165﹣97, (202)1578﹣(61+578)﹣139,
(190)37×101﹣37,
(178)258+98, (203)9999×2010+2010
(191)2563﹣79+437,
(179)109+127+73, (204)456+123+544+877
(192)768﹣273﹣27
(180)608﹣154﹣146, (205)225×48+775×48
(193)165+247+135
(181)165﹣97, (206)25×33×4×2,
(194)198+355
(182)258+98, (207)156+62﹣156+62,
(195)243﹣(43+26)
(183)36×64﹣64+64×65, (208)700﹣296﹣104,
(196)45+63+37+55,
(184)24×125×7, (209)45+99×99+54,
(197)520﹣425﹣75,
(185)25×(24+8)×125, (210)8×4×(125+25),
(198)8×(11×125),
(186)438﹣298, (211)25×(4×40),
(199)525×99+525,
(187)25×37×8, (212)47×16+63×16,
(200)3900÷25÷4,
整数简便运算--- 6(213)201×42﹣42, (238)1736÷28+1064÷28,
(226)4300÷25÷4,
(214)6854﹣(893+854+107), (239)168×25×4,
(227)25×7×44,
(215)28×19×25, (240)32×87+13×32,
(228)327+64+273+46,
(216)327×99, (241)1126﹣637﹣463,
(229)750﹣326﹣144,
(217)54000÷8÷125, (241)(101﹣98)×44÷12,
(230)278+598+122,
(218)194+59+41+106, (242)43×99+43
(231)647﹣289﹣111,
(219)383﹣(183+29), (243)1270﹣538﹣462
(232)287+198,
(220)24×125, (244)577+492+423+508
(233)357+256+1000,
(221)156+45﹣55, (245)48×125
(234)49×102﹣2×49,
(222)1300÷25÷4, (246)32000÷125
(235)1563+254+437+746,
(223)5127﹣866﹣134, (247)107+538+462
(236)25×64×125,
(224)75+127+25+63, (248)54×45+45+45×45
(237)43000÷(43×5),
(225)363×7+237×7, (249)125×(25×32 )
整数简便运算--- 7(262)99×165+165,
(250) 153×43﹢43×47, (275)1525﹣31+75﹣49,
(263)29×8×125,
(251)101×16, (276)115×23﹣23×15,
(264)8×(125+12),
(252)125×5×8×2, (277)23×199+23,
(265)1428﹣544﹣456,
(253)39+144+61, (278)72×5+72×4+72,
(266)250×60,
(254)27×4×5, (279)34×72+34×28,
(267)630÷35÷2,
(255)857﹣318﹣182, (280)203×99,
(268)125×16,
(256)25×77﹣37×25, (281)(80+4)×25,
(269)800÷32,
(257)125×7×32, (282)125×7×8,
(270)25×36,
(258)124+38+76+62, (283)27×45+55×27,
(271)810÷54,
(259)222﹣56﹣44, (284)728﹣155﹣328,
(272)55×14,
(260)16×125, (285)463+342+158,
(273)179+54+321,
(261)534+262+66+138, (286)873﹣322+278,
(274)13×14×125×2,
整数简便运算--- 8(287)1234﹣773﹣327, (312)45×54+45×45+45,
(300)469×5×2,
(288)111×9+111, (313)324+67+76,
(301)720÷15÷4,
(289)25×294×4, (314)34×27+66×27,
(302)3288﹣1999+212,
(290)4000÷125÷8, (315)99×52+52,
(303)769×101﹣769,
(291)18×45+18×55, (316)(125+9)×8,
(304)39000÷60÷50,
(292)239+144+61 (317)3.27+6.4+2.73+4.6,
(305)96×125×7×24,
(293)728﹣155﹣328, (318)3200÷25÷4,
(306)1795+376+624﹣595,
(294)463+342+158, (319)137×13+137×6+137,
(307)102×79﹣79×2,
(295)873﹣322+278, (320)450×34+45×660
(308)25×404,
(296)1234﹣773﹣327, (321)827﹣98﹣102,
(309)628﹣46+454,
(297)111×9+111, (322)378+169+22,
(310)(80﹣1)×125,
(298)24×125, (323)475﹣197,
(311)(49+49+49+49)×250,
(299)114+48+86+52, (324)188+97+12,
整数简便运算--- 9(338)329×99+329,
(325)235+36+45, (351)25×319×4,
(339)12150÷45﹣7650÷45,
(326)372+89+38, (352)99×52,
(340)27+979+1973+9021,
(327)464+28+36, (353)250×28,
(341)1358-(442+358)+622,
(328)597+24+3, (354)630÷35÷2,
(342)25×58+25+25×41,
(329)682﹣55﹣27, (355)52×72+52×29﹣52,
(343)101×15+358,
(330)725×23×4, (356)243+26+274,
(344)104×45÷52,
(331)8125×16, (357)35.24﹣(15.24+8.16),
(345)25×(40×6),
(333)932×25×25, (358)354﹣99,
(346)532×76÷38,
(334)325+325+325+324, (359)83×5+83×2+83×3,
(347)173×8÷173×8,
(335)125×24, (360)43×202,
(348)28×25+375÷25,
(336)1200÷25, (361)185×38+15×38,
(349)4260÷60×104,
(337)908×11﹣908, (362)160×25,
(350)796×3+584,
整数简便运算--- 10(363)420÷[(205﹣198)×4], (388)200﹣28×5,
(376)65+99×65,
(364)96×101﹣96, (389)297﹣28﹣72,
(377)470÷(5×47),
(365)2000﹣586﹣114, (390)4×89×25,
(378)1621﹣(312+621)﹣688,
(366)55×25+25×45, (391)78+99+22,
(379)1185+1733+115+3267,
(367)(40+4)×25, (392)900÷25÷4,
(380)101×99,
(368)540÷12÷5, (393)329×101,
(381)4920÷24+3250÷125,
(369)77×13﹣13×27, (394)54×98+46×98,
(382)24×57+43×24,
(370)104×32, (395)3000÷125,
(383)36+42+64+158,
(371)282+142+158, (396)800÷25,
(384)1600﹣217﹣483,
(372)577+204, (397)(125×25)×8,
(385)163×8+137×8,
(373)45×14, (398)57×15+42×15+15,
(386)4200÷25÷4,
(374)78×99, (399)373+733+627,
(387)100﹣28+72,
(375)542﹣199+99, (400)623﹣187﹣213+377,
整数简便运算--- 11(413)24×125×7,
(401)98+99×98, (426)125×103﹣125×3,
(414)536×64﹣64-64×35,
(402)102×36, (427)2700﹣425﹣175,
(415)25×99×4,
(403)276+428+124+572, (428)125×88,
(416)121+131+141+151+161+171+181,
(404)375÷(25﹣10)×15, (429)41+127+59+173,
(417)(80﹣1)×125,
(405)125×43﹣25×43, (430)1300÷25÷4,
(418)45×54+45×45+45,
(406)32×202, (431)156×l0l﹣156,
(419)(543+543+543+543)×25,
(407)285×38+15×38, (432)25×71×4,
(420)2300﹣165﹣35,
(408)120×25, (433)135×99,
(421)25×204,
(409)490÷[(215﹣208)×4], (434)49×99+49,
(422)125×(8+4),
(410)95×101﹣95, (435)5620÷(562×5),
(423)3700÷25÷4,
(411)7614﹣(2164+871), (436)37+125+63+175,
(424)56×32﹣46×32,
(412)578+(791+422)+309,
(425)99×78+78, (437)285+195+105+415,
整数简便运算--- 12(463)1458+999,
(438)643﹣48﹣12﹣40, (451)53×99,
(464)796+643﹣596,
(439)25×32, (452)199×39+39,
(465)475﹣303,
(440)8×48×125, (453)7826﹣(826﹣1300),
(466)265+318+35,
(441)5400÷45÷2, (454)87×99+87,
(467)25×387×4,
(442)360÷45, (455)125×88,
(468)264+(37+136)+163,
(443)148×8+152×8, (456)54×102,
(469)76×102,
(444)99×34, (457)125×(4+8),
(470)56×38+38+43×38,
(445)25×201﹣25, (458)36×111+888×8,
(471)2358+998,
(446)1268+227+473+132, (459)65×34+34×34+34,
(472)5927﹣(458+627),
(447)202×12-24, (460)25×13×4,
(473)3752﹣698,
(448)789﹣511﹣89, (461)567+142+558,
(474)2000﹣586﹣114
(449)735﹣238﹣162, (462)546﹣378﹣162,
(450)356+83+144, (475)67×101﹣67
整数简便运算--- 13(488)813﹣256﹣344
(476)125×48 (501)2000÷125÷8,
(489)77+649﹣649
(477)34×126+37×73+37 (502)800﹣138﹣162,
(490)99×7+7
(478)85+137+63+215, (503)99×38+38,
(491)459×802+197×459+459,
(479)885﹣(301﹣115), (504)25×33×4,
(492)125×(8×2)+100,
(480)40×(25+125), (505)(125+70)×8,
(493)230×24+240×77,
(481)99×123, (506)101×87,
(494)46×101﹣146,
(482)64×125, (507)312×4+188×4,
(495)(841﹣41)÷25×4,
(483)79999+7999+799+79, (508)28×225﹣2×225﹣6×225,
(496)135+39+55+61,
(484)630÷45, (509)389+327+211
(497)45×201,
(485)168×68+33×168﹣168, (510)608﹣154﹣146
(498)2000÷25÷8,
(486)126×72, (511)587﹣98
(499)17×43﹣43×7,
(487)875+659+125 (512)125×53×80,
(500)278﹣122﹣78,
整数简便运算--- 14(513)150+(140×8﹣252), (538)1300÷25÷4,
(526)273﹣73﹣27,
(514)178×78﹣78×78, (539)37+125+63+175,
(527)538﹣(461+38),
(515)771﹣169+229﹣431, (540)28×37+73×37﹣37,
(528)125×48,
(516)25×19×4, (541)(300﹣1456÷26)×32,
(529)1300÷25÷4,
(517)(25×125)×(8×40), (542)8×(29×l25),
(530)237﹣125+163﹣175,
(518)125×8×8, (543)99×l0l,
(531)156×l0l﹣156,
(519)35×39+65×39, (544)27×48+27×52,
(532)78×103,
(520)45×(200+2), (545)125×25×4×8,
(533)25×36×11,
(521)125×32, (546)125×(296×80),
(534)14×37+63×14,
(522)195×115﹣195×15, (547)33×33+99×89,
(535)(25+125 )×8,
(523)25+75﹣25+75, (548)560÷7÷8,
(536)5×4×20×25,
(524)99×38+38, (549)88×201﹣88,
(537)168﹣52﹣48,
(525)3200÷4÷25, (550)36×7÷36×7,
整数简便运算--- 15(563)52×11+11×18, (573)600÷25÷4,
(551)1300÷25÷4,
(564)912+88﹣512,
(574)83×29+71×83,
(552)32×(25×l25),
(565)376+28+172+124,
(575)199+199×99,
(553)32+155+68+145,
(566)43000÷8÷125,
(576)560÷(56÷9),
(554)201×16,
(567)99×38+38,
(555)125×103﹣125×3,
(577)101×99,
(568)25×104,
(556)2700﹣425﹣175,
(578)28×37+73×37-37,
(557)125×44,
(569)8×(29×l25),
(579)7820-375-625,
(558)41+127+59+173,
(570)688-534+112-166,
(580)25×33×4,
(559)2300÷25÷4,
(571)156×l0l-156,
(581)329+753+571+47,
(560)156×l0l﹣156,
(572)164-83-17,
(582)75+47×3,
(561)49×99+49,
(573)26×148-48×26,
(562)5787﹣329﹣1071, (583)2500÷4÷25,
整数简便运算--- 16(584)(16+24)×35÷70, (590)41+127+59+173, (596)1600-704-275-225-296,
(585)875+209+191-75, (591)156×83+156×17, (597)27+979+1973+9021,
(586)57×43+33×43, (592)25×73×4, (598)3291+599-898,
(587)25×103-125×3, (593)745-179-21, (599)833-243-457,
(588)2700-425-175, (594)125×66×8, (600)199×47+47,
(589)1200÷25÷4, (595)7200÷45÷2,
参考答案:
(1)25×125×4×8, (5)99×99+99, =28×5+2×4×7×5+3×7×4×5+1
=(25×4)×(125×8), =99×(99+1), 4×2×20+8×62,
=100×1000, =99×100, =28×5+28×10+28×15+28×20+8
=100000. =9900; ×62,
(2)2005×2004÷4, (6)37×39﹣29×37, =28×(5+10+15+20)+8×62,
=2005×(2004÷4), =37×(39﹣29), =28×50+8×62,
=2005×501, =37×10, =1400+496,
=2005×500+2005, =370; =1896;
=1002500+2005, (7)18÷27÷6×27, (10)125×32,
=1004505. =18÷6×(27÷27) =125×(8×4),
(3)55×66÷(11×11), =3×1, =125×8×4,
=55×66÷11÷11, =3; =1000×4,
=(55÷11)×(66÷11), (8)586×124+29×586﹣586×53, =4000;
=5×6, =(124+29﹣53)×586, (11)2008×99+2008,
=30; =100×586, =2008×(99+1),
(4) 25×(19+19+19+19), =58600; =2008×100,
=25×(19×4), (9) =200800;
=25×4×19, 28×5+2×4×35+21×20+14×40+8 (12)77﹣75+23﹣25,
=10×19, ×62, =(77+23)﹣(75+25),
=190 =100﹣100,
整数简便运算--- 17=0; =5400÷50÷27, =9×(8×125),
(13)125×88, =5400÷27÷50, =9×1000,
=125×(8×11), =200÷50, =9000;
=125×8×11, =4; (36)97×360+3×360,
=1000×11, (25)45×45+45×55 =360×(97+3),
=11000; =(45+55)×45, =360×100,
(14)2011×99+2011, =100×45, =36000
=2011×(99+1), =4500; (37)44×25,
=2011×100, (26)37×41﹣37 =(11×4)×25,
=201100; =(41﹣1)×37, =11×(4×25),
(15)49﹣75+151﹣25, =40×37, =11×100,
=(49+151)﹣(75+25), =1480; =1100;
=200﹣100, (27)162+89﹣62 (38)1000﹣525+125,
=100; =162﹣62+89, =1000﹣(525-125),
(16)(125+9)×8, =189 =600
=125×8+9×8, (28)71×25+71×76, (39)402﹣27+198,
=1000+72, =71×(25+76), =(402+198)-27
=1072; =71×101, =600-27
(17)3.67×25×4, =71×(100+1), =573
=3.67×(25×4), =71×100+71×1, (40)39+261+61,
=367×100, =7100+71, =39+61+261,
=36700; =7171; =100+261,
(18)28+53l+72+469, (29)125×32×25, =361;
=(28+72)+(53l+469), =(125×8)×(4×25), (41)2010×9+2010,
=100+1000, =1000×100, =2010×(9+1),
=1100; =100000; =2010×10,
(19)49×102﹣2×49, (30)398+167+102+333, =20100;
=49×(102﹣2), =(398+102)+(167+333), (42)257﹣65+43+165,
=49×100, =500+500, =(257+43)+(165﹣65),
=4900; =1000; =300+100,
(20)833﹣243﹣457, (31)1400﹣386﹣614, =400;
=833﹣(243+457), =1400﹣(386+614), (43)32×25×125,
=833﹣700, =1400﹣1000, =8×4×25×125,
=133; =400. =(4×25)×(125×8),
(21)41000÷(41×5), (32)794﹣198, =100×1000,
=(41000÷41)÷5, =794﹣200+2, =100000;
=1000÷5, =594+2, (44)384+196+216+104,
=200; =596; =(384+216)+(196+104),
(22)4200÷25, (33)68×25, =600+300,
=4200÷(5×5), =17×4×25, =900;
=4200÷5÷5, =17×(4×25), (45)8×(125+25)×4,
=840÷5, =17×100, =125×8×4+25×4×8,
=168; =1700; =4000+800,
(23)280×36﹣360×18, (34)6756﹣193﹣207, =4800;
=280×36﹣36×180, =6756﹣(193+207), (46)78×57﹣78+78×43,
=(280﹣180)×36, =6756﹣400, =78×(57+43﹣1),
=100×36, =6356; =78×(100﹣1)
=3600; (35)72×125, =78×100﹣78×1,
(24)5400÷(50×27), =9×8×125, =7800﹣78,
整数简便运算--- 18=7722; =132×(77+22+1), =(569+31)+(68+132),
(47)(6+8)×125 =132×100, =600+200,
=6×125+8×125, =13200; =800;
=750+1000. (59)1139﹣(350+139), (61)38×25×4,
=1750; =1139﹣350﹣139, =38×(25×4),
(48)726+53+74﹣353 =1139﹣139﹣350, =38×100,
=726+74+53﹣353, =1000﹣350, =3800;
=800-(353-53), =650; (62)2300﹣165﹣35,
=800-300 (60)1170÷9÷13, =2300﹣(165+35),
=500; =1170÷(9×13), =2300﹣200,
(49)735﹣248﹣152 =1170÷117, =2100;
=735﹣(248+152), =10 (63)125×(8+4),
=735﹣400, (61)98+376+2, =125×8+125×4,
=335; =(98+2)+376, =1000+500,
(50)4500÷4÷25 =100+376, =1500;
=4500÷(4×25), =476; (64)3200÷25÷4,
=4500÷100, (62)25×97×4, =3200÷(25×4),
=45. =(25×4)×97, =3200÷100,
(51)32×27+73×32, =100×97, =32;
=(27+73)×32, =9700; (65)23×32+68×23,
=100×32, (63)137×38+63×38, =23×(32+68),
=3200; =(137+63)×38, =23×100,
(52)1260﹣432﹣568, =200×38, =2300;
=1260﹣(432+568), =7600; (66)25×204,
=1260﹣1000, (64)300÷25÷4, =25×(200+4),
=260 =300÷(25×4), =25×200+25×4,
(53)25×62×4, =300÷100, =5000+100,
=(25×4)×62, =3; =5100;
=100×62, (65)125×(80+8), (67)56×32﹣46×32,
=6200; =125×80+125×8, =(56﹣46)×32,
(54)125×88, =10000+1000, =10×32,
=125×8×11, =11000; =320.
=1000×11, (57)872﹣354﹣246, (68)8+2﹣8+2,
=11000. =872﹣(354+246), =10﹣8+2,
(55)17×243+17×56+17, =872﹣600, =2+2,
=17×(243+56+1), =272; =4;
=17×300, (57)25×64×4, (69)25×4÷25×4,
=5100. =25×4×64, =100÷25×4,
(56)25×32×125, =100×64, =4×4,
=25×(4×8)×125, =6400; =16;
=(25×4)×(125×8), (58)72×102﹣2×72, (70)726﹣(526﹣150),
=100×1000, =72×(102﹣2), =726﹣526+150,
=100000; =72×100, =200+150,
(57)125×32×25, =7200; =350;
=125×8×4×25, (59)1002﹣5+98, (71)286+198,
=(125×8)×(4×25), =1002+98﹣5, =286+200﹣2,
=1000×100, =1100﹣5, =486﹣2,
=100000; =1095. =484;
(58)132×77+22×132+132, (60)569+68+132+31, (72)314﹣202,
整数简便运算--- 19=314﹣200﹣2, =100×38, =203;
=114﹣2, =3800; (97)76+149+24,
=112; (85)415﹣176﹣24, =(76+24)+149,
(73)526+301, =415﹣(176+24), =100+149,
=526+300+1, =415﹣200, =249;
=826+1, =215; (98)154﹣(54+98),
=827; (86)829+37+71+63, =154﹣54﹣98,
(74)223﹣99, =(829+71)+(37+63), =(154﹣54)﹣98,
=223﹣100+1, =900+100, =100﹣98,
=123+1, =1000; =2.
=124; (87)125×89×8, (99)37×64+37×136,
(75)98×58+58+58, =125×8×89, =37×(64+136),
=(98+1+1)×58, =1000×89, =37×200,
=100×58, =89000; =7400;
=5800. (88)428×78+572×78, (100)216+305,
(76)415﹣176﹣24, =(428+572)×78, =200+16+300+5,
=415﹣(176+24), =1000×78, =200+300+16+5,
=415﹣200, =78000. =500+21,
=215; (89)250+255+260+265+270, =521;
(77)829+37+71+63, =250+(255+265)+(260+270), (101)25×32,
=(829+71)+(63+37), =250+520+530, =25×4×8,
=900+100, =1300. =800;
=1000; (90)1041﹣(41+328), (102)47+236+64,
(78)125×89×8, =1041﹣41﹣328, =47+(64+236),
=125×8×89, =1000﹣328, =47+300,
=1000×89, =672; =347;
=89000; (91)125×54﹣46×125, (103)6×(15×9),
(79)428×78+572×78, =125×(54﹣46), =6×15×9,
=(428+572)×78, =125×8, =90×9,
=1000×78, =1000; =810;
=78000 (92)99+99×99, (104)402+539,
(80)101×92﹣92, =99×(1+99), =400+(2+539),
=(101﹣1)×92, =99×100, =400+541,
=100×92, =9900 =941;
=9200; (93)329﹣186﹣14, (105)43+78+122+257,
(81)907×99+907, =329﹣(186+14), =(43+257)+(78+122),
=(99+1)×907, =329﹣200, =300+200,
=100×907, =129; =500;
=90700; (94)25×37×4, (106)25×(26×4),
(82)274+299+201+326, =(25×4)×37, =25×4×26,
=(274+326)+(299+201), =100×37, =100×26,
=600+500, =3700; =2600;
=1100; (95)720÷16÷5, (107)25×44,
(83)65×99+65, =720÷(16×5), =25×4×11,
=(99+1)×65, =720÷80, =100×11,
=100×65, =9. =1100;
=6500; (96)403﹣198﹣2, (108)354+(229+46),
(84)38×42+38×58 =403﹣(198+2), =354+46+229,
=(42+58)×38, =403﹣200, =400+229,
整数简便运算--- 20=629 =3939; =720÷(16×5),
(109)(125+7)×8, (121)75×299+75, =720÷80,
=125×8+7×8, =75×(299+1), =9;
=1000+56, =75×300, (133)317×15﹣17×15,
=1056; =22500; =(317﹣17)×15,
(110)327+64+273+46, (122)720÷16÷5, =300×15,
=(327+273)+(64+46), =720÷(16×5), =4500
=600+110, =720÷80, (134)(125+7)×8,
=710; =9. =125×8+7×8,
(111)645﹣58﹣142, (123)456+328+672+44, =1000+56,
=645﹣(58+142), =(456+44)+(328+672), =1056;
=645﹣200, =500+1000, (135)3200÷25÷4,
=445; =1500; =3200÷(25×4),
(112)332×4+68×4, (124)57×101, =32;
=(332+68)×4, =57×(100+1), (136)327+64+273+46,
=400×4, =57×100+57×1, =(327+273)+(64+46),
=1600; =5700+57, =600+110,
(113)135﹣87+65﹣13, =5757; =710;
=(135+65)﹣(87+13), (125)87×99+87, (137)639﹣58﹣142,
=200﹣100, =87×(99+1), =639﹣(58+142),
=100; =87×100, =639﹣200,
(114)15×4×25, =8700; =439;
=15×(4×25), (126)84×72+84×29+84, (138)25×137×40,
=15×100, =84×72+84×29+84×1, =25×40×137,
=1500; =84×(72+29+1), =1000×137,
(115)1992+144﹣992, =84×102, =137000;
=(1992﹣992)+144, =8568; (139)4200﹣1934﹣1066,
=1000+144, (127)6240﹣3885﹣1115, =4200﹣(1934+1066),
=1144; =6240﹣(3885+1115), =4200﹣3000,
(116)78×101, =6240﹣5000, =1200;
=78×100+78×1, =1240; (140)290×54+29×460,
=7878; (128)25×13×4, =290×54+290×46,
(117)69+11﹣69+11, =(25×4)×13, =290×(54+46),
=(69﹣69)+(11+11), =100×13, =290×100,
=0+22, =1300; =29000;
=22. (129)99×36+36, (141)46×102+308,
=(99+1)×36, =46×(100+2)+308,
(118)25×64×125 =100×36, =46×100+46×2+308,
=25×4×2×8×125; =3600; =4600+92+308,
=(25×4)×2×(8×125), (130)351+188+12, =4600+(92+308),
=100×2×1000, =351+(188+12), =4600+400,
=200000; =351+200, =5000
(119)107×73﹣7×73 =551; (142)25×137×4,
=(107﹣7)×73, (131)88×125, =25×4×137,
=100×73, =(80+8)×125, =100×137,
=7300 =80×125+8×125, =13700;
(120)39×101, =10000+1000, (143)38×101,
=39×(100+1), =11000; =38×(100+1),
=39×100+39, (132)720÷16÷5, =38×100+38×1,
整数简便运算--- 21=3800+38, =7. =26×1000,
=3838. (156)39×49+39×51, =26000;
(144)68×200×25, =39×(49+51), (168)4200÷15÷2,
=68×(200×25) =39×100, =4200÷(15×2),
=68×5000, =3900; =4200÷30,
=340000; (157)108×25, =140;
(145)101×87﹣87, =27×4×25, (169)25×33×4,
=(101﹣1)×87, =27×(4×25), =25×4×33,
=100×87, =27×100, =100×33,
=8700; =2700; =3300.
(146)56×67+33×56, (158)25×125×2×4, (170)25×29×4,
=56×(67+33), =(25×4)×(125×2), =(25×4)×29,
=56×100, =100×250, =100×29,
=5600; =25000; =2900;
(147)9+498+102+211, (159)56×99+56, (171)598×101,
=(498+102)+(9+211), =56×(99+1), =598×(100+1),
=600+220, =56×100, =598×100+598×1,
=820; =5600; =59800+598,
(148)1305+1238﹣405, (160)124×75﹣124×72﹣124×2, =60398;
=(1305﹣405)+1238, =124×(75﹣72﹣2), (172)125×48,
=900+1238, =124×1, =(125×8)×6,
=2138; =124; =1000×8,
(149)2452﹣(75+452), (161)104×39﹣39×4, =8000;
=2452﹣452﹣75, =(104﹣4)×39, (173)105×32,
=2000﹣75, =100×39, =(100+5)×32,
=1925 =3900. =100×32+5×32,
(150)245﹣65﹣35, (162)28×99+28 =3200+160,
=245﹣(65+35), =(99+1)×28, =3360;
=245﹣100, =100×28, (174)4×43×25,
=145; =2800; =4×25×43,
(151)186+82+18, (163)(125×39)×8 =100×43,
=186+(82+18), =125×8×39, =4300
=186+100, =1000×39, (175)109+127+73,
=286; =39000 =109+(127+73),
(152)25×(4×97), (164)6958+1998, =109+200,
=(25×4)×97, =6958+2000﹣2, =309;
=100×97, =8958﹣2, (176)608﹣154﹣146,
=9700; =8956; =608﹣(154+146),
(153)8×(25+20), (165)(81+108)÷27, =608﹣300,
=8×25+8×20, =81÷27+108÷27, =308;
=200+160, =3+4, (177)165﹣97,
=360; =7; =165﹣(100﹣3),
(154)24×56+44×24, (166)3254﹣599﹣254, =165﹣100+3,
=24×(56+44), =3254﹣254﹣600+1, =65+3,
=24×100, =3000﹣600+1, =68;
=2400; =2400+1, (178)258+98,
(155)700÷4÷25, =2401. =258+(100﹣2),
=700÷(4×25), (167)26×8×125, =258+100﹣2,
=700÷100, =26×(8×125), =358﹣2,
整数简便运算--- 22=356. =516 (202)1578﹣(61+578)﹣139,
(179)109+127+73, (190)37×101﹣37, =1578﹣61﹣578﹣139,
=109+(127+73), =37×(100﹣1), =(1578﹣578)﹣(61+139),
=109+200, =37×100, =1000﹣200,
=309; =3700; =800
(180)608﹣154﹣146, (191)2563﹣79+437, (203)9999×2010+2010
=608﹣(154+146), =(2563+437)﹣79, =(9999+1)×2010,
=608﹣300, =3000﹣79, =10000×2010,
=308; =2921. =20100000;
(181)165﹣97, (192)768﹣273﹣27 (204)456+123+544+877
=165﹣(100﹣3), =768﹣(273+27), =(456+544)+(123+877),
=165﹣100+3, =768﹣300, =1000+1000,
=65+3, =468; =2000;
=68; (193)165+247+135 (205)225×48+775×48
(182)258+98, =165+135+247, =225×48+775×48,
=258+(100﹣2), =300+247, =(225+775)×48,
=258+100﹣2, =547; =1000×48,
=358﹣2, (194)198+355 =48000
=356. =200+355﹣2, (206)25×33×4×2,
(183)36×64﹣64+64×65, =555﹣2, =(25×4)×(33×2),
=(36﹣1+65)×64, =553; =100×66,
=100×64, (195)243﹣(43+26) =6600;
=6400,; =243﹣43﹣36, (207)156+62﹣156+62,
(184)24×125×7, =200﹣36, =(156﹣156)+(62+62),
=3×8×125×7, =164. =0+124,
=(3×7)×(8×125), (196)45+63+37+55, =124;
=21×1000, =(45+55)+(63+37), (208)700﹣296﹣104,
=21000; =100+100, =700﹣(296+104),
(185)25×(24+8)×125, =200; =700﹣400,
=25×32×125, (197)520﹣425﹣75, =300;
=25×4×8×125, =520﹣(425+75), (209)45+99×99+54,
=(25×4)×(8×125), =520﹣500, =45+99×(100﹣1)+54,
=100×1000, =20; =45+99×100﹣99×1+54,
=100000; (198)8×(11×125), =45+9900﹣99+54,
(186)438﹣298, =11×(8×125), =(45+54﹣99)+9900,
=438﹣300+2, =11×1000, =0+9900,
=138+2, =11000; =9900;
=140; (199)525×99+525, (210)8×4×(125+25),
(187)25×37×8, =525×(99+1), =(8×125×4)+(4×25×8),
=25×8×37, =525×100, =1000×4+100×8,
=200×37, =52500; =4000+800,
=7400; (200)3900÷25÷4, =4800.
(188)4800÷16÷5, =3900÷(25×4), (211)25×(4×40),
=4800÷(16×5), =3900÷100, =25×4×40,
=4800÷80, =39; =100×40,
=60; (201)275+364+636+725, =4000;
(189)816﹣285﹣15, =(275+725)+(364+636), (212)47×16+63×16,
=816﹣(285+15), =1000+1000, =(47+63)×16,
=816﹣300, =2000; =110×16,
整数简便运算--- 23=1760; (224)75+127+25+63, (236)25×64×125,
(213)201×42﹣42, =(75+25)+(127+63), =25×4×2×8×125,
=(201﹣1)×42, =100+190, =(25×4)×(8×125)×2,
=200×42, =290 =100×1000×2,
=8400; (225)363×7+237×7, =100000×2,
(214)6854﹣(893+854+107), =(363+237)×7, =200000;
=6854﹣854﹣(893+107), =600×7, (237)43000÷(43×5),
=6000﹣1000, =4200; =43000÷43÷5,
=5000; (226)4300÷25÷4, =1000÷5,
(215)28×19×25, =4300÷(25×4), =200;
=4×7×19×25, =4300÷100, (238)1736÷28+1064÷28,
=(4×25)×(7×19), =43; =(1736+1064)÷28,
=100×133, (227)25×7×44, =2800÷28,
=13300; =25×7×4×11, =100
(216)327×99, =(25×4)×(7×11), (239)168×25×4,
=327×(100﹣1), =100×77, =168×(25×4),
=327×100﹣327×1, =7700; =168×100,
=32700﹣327, (228)327+64+273+46, =16800;
=32373; =(327+273)+(64+46), (240)32×87+13×32,
(217)54000÷8÷125, =600+110, =(87+13)×32,
=54000÷(8×125), =710; =100×32,
=54000÷1000, (229)750﹣326﹣144, =3200;
=54; =750﹣(326+144), (241)1126﹣637﹣463,
(218)194+59+41+106, =750﹣470, =1126﹣(637+463),
=(194+106)+(59+41), =280; =1126﹣1100,
=300+100, (230)278+598+122, =26;
=400; =278+122+598, (241)(101﹣98)×44÷12,
(219)383﹣(183+29), =400+598, =3×44÷12,
=383﹣183﹣29, =998; =132÷12,
=200﹣29, (231)647﹣289﹣111, =11
=171; =647﹣(289+111), (242)43×99+43
(220)24×125, =647﹣400, =(99+1)×43,
=3×8×125, =247; =100×43,
=3×(8×125), (232)287+198, =4300;
=3×1000, =287+(200﹣2), (243)1270﹣538﹣462
=3000; =287+200﹣2, =1270﹣(538+462),
(221)156+45﹣55, =487﹣2, =1270﹣1000,
=155+1+45﹣55, =485 =270;
=(155﹣55)+(45+1), (233)357+256+1000, (244)577+492+423+508
=100+46, =613+1000, =(577+423)+(492+508),
=146 =1613; =1000+1000,
(222)1300÷25÷4, (234)49×102﹣2×49, =2000;
=1300÷(25×4), =49×(102﹣2), (245)48×125
=1300÷100, =49×100, =6×(8×125),
=13; =4900; =6×1000,
(223)5127﹣866﹣134, (235)1563+254+437+746, =6000
=5127﹣(866+134), =(1563+437)+(254+746), (246)32000÷125
=5127﹣1000, =2000+1000, =32×1000÷125,
=4127; =3000; =32×(1000÷125),
整数简便运算--- 24=32×8, (258)124+38+76+62, =25×4×9,
=256; =(124+76)+(38+62), =100×9,
(247)107+538+462 =200+100, =900;
=107+(538+462), =300; (271)810÷54,
=107+1000, (259)222﹣56﹣44, =(810÷9)÷(54÷9),
=1107; =222﹣(56+44), =90÷6,
(248)54×45+45+45×45 =222﹣100, =15;
=(54+1+45)×45, =122; (272)55×14,
=100×45, (260)16×125, =55×2×7,
=4500; =2×(8×125), =110×7,
(249)125×(25×32 ) =2×1000, =770.
=125×25×8×4, =2000. (273)179+54+321,
=(125×8)×(25×4), (261)534+262+66+138, =179+321+54,
=1000×100, =(534+66)+(262+138), =500+54,
=100000; =600+400, =554;
(250) 153×43﹢43×47, =1000; (274)13×14×125×2,
=(153+47)×43, (262)99×165+165, =(13×14)×(125×2),
=200×43, =(99+1)×165, =182×250,
=8600; =100×165, =45500;
(251)101×16, =16500; (275)1525﹣31+75﹣49,
=(100+1)×16, (263)29×8×125, =(1525+75)﹣(31+49),
=100×16+16, =29×(8×125), =1600﹣80,
=1600+16, =29×1000, =1520;
=1616; =29000; (276)115×23﹣23×15,
(252)125×5×8×2, (264)8×(125+12), =(115﹣15)×23,
=125×8×(5×2), =8×125+8×12, =100×23,
=1000×10, =1000+96, =2300;
=10000; =1096; (277)23×199+23,
(253)39+144+61, (265)1428﹣544﹣456, =23×(199+1),
=39+61+144, =1428﹣(544+456), =23×200,
=100+144, =1428﹣1000, =4600;
=244; =428. (278)72×5+72×4+72,
(254)27×4×5, (266)250×60, =72×(5+4+1),
=27×(4×5), =(250×4)×(60÷4), =72×10,
=27×20, =1000×15, =720;
=540; =15000; (279)34×72+34×28,
(255)857﹣318﹣182, (267)630÷35÷2, =34×(72+28),
=857﹣(318+182), =630÷(35×2), =34×100,
=857﹣500, =630÷70, =3400;
=357. =9; (280)203×99,
(256)25×77﹣37×25, (268)125×16, =203×(100﹣1),
=25×(77﹣37), =125×8×2, =203×100﹣203×1,
=25×40, =1000×2, =20300﹣203,
=1000; =2000; =20097;
(257)125×7×32, (269)800÷32, (281)(80+4)×25,
=125×7×8×4, =(800÷8)÷(32÷8), =80×25+4×25,
=(125×8)×(7×4), =100÷4, =2000+100,
=1000×28, =25; =2100
=28000; (270)25×36, (282)125×7×8,
整数简便运算--- 25=125×8×7, =963; (306)1795+376+624﹣595,
=1000×7, (295)873﹣322+278, =(1795﹣595)+(376+624),
=7000; =551+278, =1200+1000,
(283)27×45+55×27, =829; =2200;
=27×(45+55), (296)1234﹣773﹣327, (307)102×79﹣79×2,
=27×100, =1234﹣(773+327), =(102﹣2)×79,
=2700; =1234﹣1100, =100×79,
(284)728﹣155﹣328, =134; =7900;
=728﹣328﹣155, (297)111×9+111, (308)25×404,
=400﹣155, =111×(9+1), =25×(4×101),
=245; =111×10, =(25×4)×101,
(285)463+342+158, =1110. =100×101,
=463+(342+158), (298)24×125, =10100.
=463+500, =3×8×125, (309)628﹣46+454,
=963; =3×(8×125), =582+454,
(286)873﹣322+278, =3×1000, =1036;
=551+278, =3000; (310)(80﹣1)×125,
=829; (299)114+48+86+52, =80×125﹣1×125,
(287)1234﹣773﹣327, =(114+86)+(48+52), =10000﹣125,
=1234﹣(773+327), =200+100, =9875;
=1234﹣1100, =300; (311)(49+49+49+49)×250,
=134; (300)469×5×2, =(49×4)×250,
(288)111×9+111, =469×(5×2), =49×(4×25),
=111×(9+1), =469×10, =49×100,
=111×10, =4690; =4900;
=1110 (301)720÷15÷4, (312)45×54+45×45+45,
(289)25×294×4, =720÷(15×4), =45×(54+45+1),
=(25×4)×294, =720÷60, =45×100,
=100×294, =12. =4500;
=29400; (302)3288﹣1999+212, (313)324+67+76,
(290)4000÷125÷8, =3288﹣2000+1+212, =324+76+67,
=4000÷(125×8), =1288+1+212, =400+67,
=4000÷1000, =(1288+212)+1, =467;
=4; =1500+1, (314)34×27+66×27,
(291)18×45+18×55, =1501; =(34+66)×27,
=(45+55)×18, (303)769×101﹣769, =100×27,
=100×18, =769×(101﹣1), =2700;
=1800; =769×100, (315)99×52+52,
(292)239+144+61 =76900,; =(99+1)×52,
=239+61+144, (304)39000÷60÷50, =100×52,
=300+144, =39000÷(60×50), =5200.
=444. =39000÷3000, (316)(125+9)×8,
(293)728﹣155﹣328, =13; =125×8+9×8,
=728﹣328﹣155, (305)96×125×7×24, =1000+72,
=400﹣155, =96×7×3×125×8, =1072;
=245; =96×7×3×(125×8), (317)3.27+6.4+2.73+4.6,
(294)463+342+158, =672×3×1000, =(3.27+2.73)+(6.4+4.6),
=463+(342+158), =2016×1000, =6+11,
=463+500, =2016000. =17;
整数简便运算--- 26(318)3200÷25÷4, =725×4×23, =100×15+15+358,
=3200÷(25×4), =2900×23, =1500+15+358,
=3200÷100, =66700; =1515+358,
=32; (331)8125×16, =1873;
(319)137×13+137×6+137, =8125×8×2, (344)104×45÷52,
=137×(13+6+1), =65000×2, =104÷52×45,
=137×20, =130000; =2×45,
=2740. (333)932×25×25, =90;
(320)450×34+45×660 =23300×25, (345)25×(40×6),
=45×340+45×660, =582500 =25×40×6,
=45×(340+660), (334)325+325+325+324, =1000×6,
=45×1000, =325+325+325+325﹣1, =6000;
=45000. =325×4﹣1, (346)532×76÷38,
(321)827﹣98﹣102, =1300﹣1, =532×(76÷38),
=827﹣(98+102), =1299; =532×2,
=827﹣200, (335)125×24, =1064;
=627; =125×8×3, (347)173×8÷173×8,
(322)378+169+22, =1000×3, =173÷173×8×8,
=378+22+169, =3000; =1×8×8,
=400+169, (336)1200÷25, =64;
=569; =(1200×4)÷(25×4), (348)28×25+375÷25,
(323)475﹣197, =4800÷100, =700+15,
=(475+3)﹣(197+3), =48; =715;
=478﹣200, (337)908×11﹣908, (349)4260÷60×104,
=278; =908×(11﹣1), =71×104,
(324)188+97+12, =908×10, =71×(100+4),
=188+12+97, =9080. =71×100+71×4,
=200+97, (338)329×99+329, =7100+284,
=297; =329×(99+1), =7384;
(325)235+36+45, =329×100, (350)796×3+584,
=235+45+36, =32900; =2388+584,
=280+36, (339)12150÷45﹣7650÷45, =2972;
=316; =(12150﹣7650)÷45, (351)25×319×4,
(326)372+89+38, =4500÷45, =25×4×309,
=372+38+89, =100; =100×309,
=410+89, (340)27+979+1973+9021, =30900;
=499; =(27+1973)+(979+9021), (352)99×52,
(327)464+28+36, =2000+10000, =(100﹣1)×52,
=464+36+28, =12000 =100×52﹣1×52,
=528; (341)1358-(442+358)+622, =5200﹣52,
(328)597+24+3, =1358-358+(622﹣422), =5148;
=597+3+24, =1000﹣200, (353)250×28,
=600+24, =800; =250×4×7,
=624; (342)25×58+25+25×41, =1000×7,
(329)682﹣55﹣27, =25×(58+1+41), =7000;
=682﹣(55+27), =25×100, (354)630÷35÷2,
=682﹣82, =2500; =630÷(35×2),
=600; (343)101×15+358, =630÷70,
(330)725×23×4, =(100+1)×15+358, =9;
整数简便运算--- 27(355)52×72+52×29﹣52, =100×25, (378)1621﹣(312+621)﹣688,
=52×(72+29﹣1), =2500; =1621﹣312﹣621﹣688,
=52×100, (367)(40+4)×25, =(1621﹣621)﹣(312+688),
=5200 =40×25+4×25, =1000﹣1000,
(356)243+26+274, =1000+100, =0.
=243+(26+274), =1100; (379)1185+1733+115+3267,
=243+300, (368)540÷12÷5, =(1185+115)+(1733+3267),
=543; =540÷(12×5), =1300+5000,
(357)35.24﹣(15.24+8.16), =540÷60, =6300;
=35.24﹣15.24﹣8.16, =9; (380)101×99,
=20﹣8.16, (369)77×13﹣13×27, =(100+1)×99,
=11.84; =(77﹣27)×13, =100×99+1×99,
(358)354﹣99, =50×13, =9900+99,
=354﹣100+1, =650; =9999;
=254+1, (370)104×32, (381)4920÷24+3250÷125,
=255; =(100+4)×32, =(4920×5)÷(24×5)+(3250×8)
(359)83×5+83×2+83×3, =100×32+32×4, ÷(125×8),
=83×(5+2+3), =3200+128, =24600÷120+26000÷1000,
=83×10, =3328. =205+26,
=830. (371)282+142+158, =231;
(360)43×202, =282+(142+158), (382)24×57+43×24,
=43×(200+2), =282+300, =24×(57+43),
=43×200+43×2, =582; =24×100,
=8600+86, (372)577+204, =2400;
=8686; =577+200+4, (383)36+42+64+158,
(361)185×38+15×38, =777+4, =(36+64)+(42+158),
=(185+15)×38, =781; =100+200,
=200×38, (373)45×14, =300;
=7600; =45×2×7, (384)1600﹣217﹣483,
(362)160×25, =90×7, =1600﹣(217+483),
=40×4×25, =630; =1600﹣700,
=40×(4×25), (374)78×99, =900;
=40×100, =78×(100﹣1), (385)163×8+137×8,
=4000; =78×100﹣78, =(163+137)×8,
(363)420÷[(205﹣198)×4], =7800﹣78, =300×8,
=420÷[7×4], =7722; =2400;
=420÷7÷4, (375)542﹣199+99, (386)4200÷25÷4,
=60÷4, =542﹣(199﹣99), =4200÷(25×4),
=15; =542﹣100, =4200÷100,
(364)96×101﹣96, =442; =42;
=96×(101﹣1), (376)65+99×65, (387)100﹣28+72,
=96×100, =(1+99)×65, =72+72,
=9600. =100×65, =144;
(365)2000﹣586﹣114, =6500; (388)200﹣28×5,
=2000﹣(586+114), (377)470÷(5×47), =200﹣140,
=2000﹣700, =470÷5÷47, =60;
=1300; =470÷47÷5, (389)297﹣28﹣72,
(366)55×25+25×45, =10÷5, =297﹣(28+72),
=(55+45)×25, =2; =297﹣100,
整数简便运算--- 28=197; =9800; =21×1000,
(390)4×89×25, (402)102×36, =21000;
=4×25×89, =(100+2)×36, (414)536×64﹣64-64×35,
=100×89, =100×36+2×36, =(536﹣1-35)×64,
=8900; =3600+72, =500×64,
(391)78+99+22, =3672; =32000;
=78+22+99, (403)276+428+124+572, (415)25×99×4,
=100+99, =(276+124)+(428+572), =25×4×99,
=199; =400+1000, =100×99,
(392)900÷25÷4, =1400; =9900;
=900÷(25×4), (404)375÷(25﹣10)×15, (416)
=900÷100, =375÷15×15, 121+131+141+151+161+171+181,
=9. =375×(15÷15), =151﹣30+151﹣20+151﹣
(393)329×101, =375; 10+151+151+10+151+20+151+30,
=329×(100+1), (405)125×43﹣25×43, =
=329×100+329×1, =(125﹣25)×43, (151+151+151+151+151+151+151)+
=32900+329, =4300; (30﹣30+20﹣20+10﹣10),
=33229; (406)32×202, =151×7,
(394)54×98+46×98, =32×(200+2), =1057;
=(54+46)×98, =32×200+32×2, (417)(80﹣1)×125,
=100×98, =6400+64, =80×125﹣1×125,
=9800; =6464; =10000﹣125,
(395)3000÷125, (407)285×38+15×38, =9875;
=(3000×8)÷(125×8), =(285+15)×38, (418)45×54+45×45+45,
=24000÷1000, =300×38, =45×(54+45+1),
=24; =11400; =45×100,
(396)800÷25, (408)120×25, =4500;
=(800×4)÷(25×4), =30×4×25, (419)(543+543+543+543)×25,
=3200÷100, =30×(4×25), =543×4×25,
=32; =30×100, =543×(4×25),
(397)(125×25)×8, =3000; =543×100,
=125×8×25, (409)490÷[(215﹣208)×4], =54300.
=1000×25, =490÷[7×4], (420)2300﹣165﹣35,
=25000; =490÷7÷4, =2300﹣(165+35),
(398)57×15+42×15+15, =70÷4, =2300﹣200,
=(57+42+1)×15, =17.5; =2100;
=100×15, (410)95×101﹣95, (421)25×204,
=1500. =95×(101﹣1), =25×(200+4),
(399)373+733+627, =95×100, =25×200+25×4,
=373+627+733, =9500. =5000+100,
=1000+733, (411)7614﹣(2164+871), =5100;
=1733; =7614﹣3035, (422)125×(8+4),
(400)623﹣187﹣213+377, =4579. =125×8+125×4,
=(623+377)﹣(187+213), (412)578+(791+422)+309, =1000+500,
=1000﹣400, =(578+422)+(791+309), =1500;
=600. =1000+1100, (423)3700÷25÷4,
(401)98+99×98, =2100. =3700÷(25×4),
=98×(1+99), (413)24×125×7, =3700÷100,
=98×100, =(3×7)×(8×125), =37;
整数简便运算--- 29(424)56×32﹣46×32, (436)37+125+63+175, =789﹣600,
=(56﹣46)×32, =(37+63)+(125+175), =189;
=10×32, =100+300, (449)735﹣238﹣162,
=320; =400. =735﹣(238+162),
(425)99×78+78, (437)285+195+105+415, =735﹣400,
=(99+1)×78, =(285+415)+(195+105), =335.
=100×78, =700+300, (450)356+83+144,
=7800. =1000; =(356+144)+83,
(426)125×103﹣125×3, (438)643﹣48﹣12﹣40, =500+83,
=125×(103﹣3), =643﹣(48+12+40), =583;
=125×100, =643﹣100, (451)53×99,
=12500; =543; =53×(100﹣1),
(427)2700﹣425﹣175, (439)25×32, =53×100﹣53,
=2700﹣(425+175), =(25×4)×8, =5300﹣53,
=2700﹣600, =100×8, =5247;
=2100; =800; (452)199×39+39,
(428)125×88, (440)8×48×125, =39×(199+1),
=125×8×11, =(8×125)×48, =39×200,
=1000×11, =1000×48, =7800;
=11000; =48000; (453)7826﹣(826﹣1300),
(429)41+127+59+173, (441)5400÷45÷2, =7826﹣826+1300,
=(41+59)+(127+173), =5400÷(45×2), =7000+1300,
=100+300, =5400÷90, =8300;
=400; =60; (454)87×99+87,
(430)1300÷25÷4, (442)360÷45, =87×(99+1),
=1300÷(25×4), =360÷9÷5, =87×100,
=1300÷100, =40÷5, =8700;
=13; =8; (455)125×88,
(431)156×l0l﹣156, (443)148×8+152×8, =125×(8×11),
=156×(101﹣1), =(148+152)×8, =125×8×11,
=156×100, =300×8, =1000×11,
=15600. =2400; =11000;
(432)25×71×4, (444)99×34, (456)54×102,
=25×4×71, =34×100﹣34×1, =54×(100+2),
=100×71, =3400﹣34, =54×100+54×2,
=7100; =3366; =5400+108,
(433)135×99, (445)25×201﹣25, =5508;
=135×(100﹣1), =25×(201﹣1), (457)125×(4+8),
=135×100﹣135×1, =25×200, =125×4+125×8,
=13500﹣135, =5000. =500+1000,
=13365; (446)1268+227+473+132, =1500;
(434)49×99+49, =(1268+132)+(227+473), (458)36×111+888×8,
=49×(99+1), =1400+700, =36×111+111×64,
=49×100, =2100; =111×(36+64),
=4900; (447)202×12-24, =111×100,
(435)5620÷(562×5), =12×(202-2), =11100;
=5620÷562÷5, =2400; (459)65×34+34×34+34,
=10÷5, (448)789﹣511﹣89, =34×(65+34+1),
=2; =789﹣(511+89), =34×100,
整数简便运算--- 30=3400; =3358﹣2, =(80000﹣1)+(8000﹣1)+(800﹣
(460)25×13×4, =3356; 1)+(80﹣1),
=25×4×13, (472)5927﹣(458+627), =(80000+8000+800+80)﹣
=100×13, =5927﹣627﹣458, (1+1+1+1),
=1300. =5300﹣458, =88880﹣4,
(461)567+142+558, =4842; =88876;
=567+(142+558), (473)3752﹣698, (484)630÷45,
=567+700, =3752﹣700+2, =630÷(9×5),
=1267; =3052+2, =630÷9÷5,
(462)546﹣378﹣162, =3054; =70÷5,
=546﹣(378+162), (474)2000﹣586﹣114 =14;
=546﹣540, =2000﹣(586+114), (485)168×68+33×168﹣168,
=6; =2000﹣700, =168×(68+33﹣1),
(463)1458+999, =1300; =168×100,
=1458+1000﹣1, (475)67×101﹣67 =16800;
=2458﹣1, =(101﹣1)×67, (486)126×72,
=2457; =100×67, =(125+1)×72,
(464)796+643﹣596, =6700; =125×72+1×72,
=796﹣596+643, (476)125×48 =125×8×9+1×72,
=200+643, =125×8×6, =1000×9+72,
=843; =1000×6, =9000+72,
(465)475﹣303, =6000; =9072.
=475﹣300﹣3, (477)34×126+37×73+37 (487)875+659+125
=175﹣3, =4284+2701+37, =875+125+659,
=172; =7022; =1000+659,
(466)265+318+35, (478)85+137+63+215, =1659;
=265+35+318, =(85+215)+(137+63), (488)813﹣256﹣344
=300+318, =300+200, =813﹣(256+344),
=618. =500; =813﹣600,
(467)25×387×4, (479)885﹣(301﹣115), =213;
=(25×4)×387, =885﹣301+115, (489)77+649﹣649
=100×387, =(885+115)﹣301, =649﹣649+77,
=38700; =1000﹣301, =0+77,
(468)264+(37+136)+163, =699; =77;
=264+37+136+163, (480)40×(25+125), (490)99×7+7
=(264+136)+(37+163), =40×25+40×125, =(99+1)×7,
=400+200, =1000+5000, =100×7,
=600; =6000; =700.
(469)76×102, (481)99×123, (491)459×802+197×459+459,
=76×(100+2), =(100﹣1)×123, =459×802+197×459+459×1,
=76×100+76×2, =100×123﹣1×123, =459×(802+197+1),
=7600+152, =12300﹣123, =459×1000,
=7752; =12177; =459000.
(470)56×38+38+43×38, (482)64×125, (492)125×(8×2)+100,
=(56+43+1)×38, =8×8×125, =125×8×2+100,
=100×38, =8×(8×125), =1000×2+100,
=3800. =8×1000, =2000+100,
(471)2358+998, =8000; =2100;
=2358+1000﹣2, (483)79999+7999+799+79, (493)230×24+240×77,
整数简便运算--- 31=23×240+240×77, =3800; =1000﹣600,
=240×(23+77), (504)25×33×4, =400.
=240×100, =25×4×33, (516)25×19×4,
=24000; =100×33, =25×4×19,
(494)46×101﹣146, =3300; =100×19,
=46×(100+1)﹣146, (505)(125+70)×8, =1900;
=4600+46﹣146, =125×8+70×8, (517)(25×125)×(8×40),
=4600﹣(146﹣46), =1000+560, =(25×40)×(125×8),
=4600﹣100, =1560; =1000×1000,
=4500; (506)101×87, =1000000;
(495)(841﹣41)÷25×4, =(100+1)×87, (518)125×8×8,
=800÷25×4, =100×87+1×87, =1000×8,
=8×100÷25×4, =8700+87, =8000;
=8×(100÷25)×4, =8787; (519)35×39+65×39,
=8×4×4, (507)312×4+188×4, =(35+65)×39,
=32×4, =(312+188)×4, =100×39,
=128. =500×4, =3900;
(496)135+39+55+61, =2000; (520)45×(200+2),
=(135+55)+(39+61), (508)28×225﹣2×225﹣6×225, =45×200+45×2,
=190+100, =(28﹣2﹣6)×225, =9000+90,
=290; =20×225, =9090.
(497)45×201, =4500. (521)125×32,
=45×(200+1), (509)389+327+211 =125×(8×4),
=45×200+45×1, =389+211+327, =(125×8)×4,
=9000+45, =600+327, =1000×4,
=9045; =927; =4000;
(498)2000÷25÷8, (510)608﹣154﹣146 (522)195×115﹣195×15,
=2000÷(25×8), =608﹣(154+146), =195×(115﹣15),
=2000÷200, =608﹣300, =195×100,
=10; =308; =19500;
(499)17×43﹣43×7, (511)587﹣98 (523)25+75﹣25+75,
=(17﹣7)×43, =587﹣(100﹣2), =(25﹣25)+(75+75),
=10×43, =587﹣100+2, =0+150,
=430; =487+2, =150;
(500)278﹣122﹣78, =489; (524)99×38+38,
=278﹣(122+78), (512)125×53×80, =(99+1)×38,
=278﹣200, =125×80×53, =100×38,
=78. =1000×53, =3800;
(501)2000÷125÷8, =53000; (525)3200÷4÷25,
=2000÷(125×8), (513)150+(140×8﹣252), =3200÷(4×25),
=2000÷1000, =150+(1120﹣252), =3200÷100,
=2; =150+868, =32;
(502)800﹣138﹣162, =1018; (526)273﹣73﹣27,
=800﹣(138+162), (514)178×78﹣78×78, =273﹣(73+27),
=800﹣300, =78×(178﹣78), =273﹣100,
=500; =78×100, =173.
(503)99×38+38, =7800; (527)538﹣(461+38),
=(99+1)×38, (515)771﹣169+229﹣431, =538﹣499,
=100×38, =(771+229)﹣(169+431), =39;
整数简便运算--- 32(528)125×48, =(37+63)+(125+175), =36÷36×7×7,
=125×(8×6), =100+300, =1×7×7,
=(125×8)×6, =400; =49;
=1000×6, (540)28×37+73×37﹣37, (551)1300÷25÷4,
=6000; =37×(28+73﹣1), =1300÷(25×4),
(529)1300÷25÷4, =37×100, =1300÷100,
=1300÷(25×4), =3700; =13;
=1300÷100, (541)(300﹣1456÷26)×32, (552)32×(25×l25),
=13; =(300﹣56)×32, =32×25×125,
(530)237﹣125+163﹣175, =244×32, =8×4×25×125,
=(237+163)﹣(125+175), =7808; =4×25×(8×125),
=400﹣300, (542)8×(29×l25), =100×1000,
=100; =(8×125)×29, =100000;
(531)156×l0l﹣156, =1000×29, (553)32+155+68+145,
=156×(l0l﹣1), =29000; =(32+68)+(155+145),
=156×100, (543)99×l0l, =100+300,
=15600; =99×(100+1), =400;
(532)78×103, =99×100+99×1, (554)201×16,
=78×(100+3), =9900+99, =(200+1)×16,
=78×100+78×3, =9999. =200×16+16,
=7800+234, (544)27×48+27×52, =3200+16,
=8034; =27×(48+52), =3216.
(533)25×36×11, =27×100, (555)125×103﹣125×3,
=25×4×9×11, =2700; =125×(103﹣3),
=(25×4)×(9×11), (545)125×25×4×8, =125×100,
=100×99, =(125×8)×(25×4), =12500;
=9900; =1000×100, (556)2700﹣425﹣175,
(534)14×37+63×14, =100000; =2700﹣(425+175),
=14×(37+63), (546)125×(296×80), =2700﹣600,
=14×100, =125×80×296, =2100;
=1400; =10000×296, (557)125×44,
(535)(25+125 )×8, =2960000; =(125×4)×11,
=25×8+125×8, (547)33×33+99×89, =500×11,
=200+1000, =99×3+99×89, =5500;
=1200; =99×(3+89), (558)41+127+59+173,
(536)5×4×20×25, =99×92, =(41+59)+(127+173),
=4×25×5×20, =(100﹣1)×92, =100+300,.
=(4×25)×(5×20), =100×92﹣1×92, =400;.
=100×100, =9200﹣92, (559)2300÷25÷4,
=10000; =9108; =2300÷(25×4),
(537)168﹣52﹣48, (548)560÷7÷8, =2300÷100,
=168﹣(52+48), =560÷(7×8), =23;
=168﹣100, =560÷56, (560)156×l0l﹣156,
=68; =10; =156×(l0l﹣1),
(538)1300÷25÷4, (549)88×201﹣88, =156×100,
=1300÷(25×4), =88×(201﹣1), =15600;
=1300÷100, =88×200, (561)49×99+49,
=13; =17600 =49×(99+1),
(539)37+125+63+175, (550)36×7÷36×7, =49×100,
整数简便运算--- 33=4900. (573)600÷25÷4, =(875-75)+(209+191),
(562)5787﹣329﹣1071, =600÷(25×4), =800+400,
=5787﹣(329+1071), =600÷100, =1200;
=5787﹣1400, =6; (586)57×43+33×43,
=4387; (574)83×29+71×83, =(57+33)×43,
(563)52×11+11×18, =83×(29+71), =90×43,
=(52+18)×11, =83×100, =3870.
=70×11, =8300; (587)25×103-125×3,
=770; (575)199+199×99, =25×(100+3)-125×3,
(564)912+88﹣512, =199×(99+1), =25×100+25×3-125×3,
=912-512+88, =199×100, =2500+75-375,
=488 =19900; =2575-375,
(565)376+28+172+124, (576)560÷(56÷9), =2200.
=(376+124)+(28+172), =560÷56×9 (588)2700-425-175,
=500+200, =10×9, =2700-(425+175),
=700; =90; =2700-600,
(566)43000÷8÷125, (577)101×99, =2100;
=43000÷(8×125), =(100+1)×99, (589)1200÷25÷4,
=43000÷1000, =100×99+1×99, =1200÷(25×4),
=43; =9900+99, =1200÷100,
(567)99×38+38, =9999; =12;
=38×(99+1), (578)28×37+73×37-37, (590)41+127+59+173,
=38×100, =(28+73-1)×37, =(41+59)+(127+173),
=3800; =100×37, =100+300,
(568)25×104, =3700. =400;
=25×(100+4), (579)7820-375-625, (591)156×83+156×17,
=25×100+25×4, =7820-(375+625), =156×(83+17),
=2500+100, =7820-1000, =156×100,
=2600; =6820; =15600;
(569)8×(29×l25), (580)25×33×4, (592)25×73×4,
=8×125×29, =25×4×33, =25×4×73,
=1000×29, =100×33, =100×73,
=29000; =3300; =7300.
(570)688-534+112-166, (581)329+753+571+47, (593)745-179-21,
=(688+112)-(534+166), =(329+571)+(47+753), =745-(179+21),
=800-700, =900+800, =745-200,
=100; =1700; =545;
(571)156×l0l-156, (582)75+47×3, (594)125×66×8,
=156×(101-1), =75+141, =(125×8)×66,
=156×100, =216; =1000×66,
=15600; (583)2500÷4÷25, =66000;
(572)164-83-17, =2500÷(4×25), (595)7200÷45÷2,
=164-(83+17), =2500÷100, =7200÷(45×2),
=164-100, =25; =7200÷90,
=64; (584)(16+24)×35÷70, =80;
(573)26×148-48×26, =40×35÷70, (596)1600-704-275-225-296,
=26×(148-48), =1400÷70, =1600-(704+296)-(275+225),
=26×100, =20; =1600-1000-500,
=2600. (585)875+209+191-75, =600-500,
整数简便运算--- 34=100;
(597)27+979+1973+9021,
=(27+1973)+(979+9021),
=2000+10000,
=12000;
(598)3291+599-898,
=3291+600-1-900+2,
=3291+600-900-1+2,
=3891-900-1+2,
=2991-1+2,
=2990+2,
=2992;
(599)833-243-457,
=833-(243+457),
=833-700,
=133;
(600)199×47+47,
=(199+1)×47,
=200×47,
=9400.
整数简便运算--- 35