文档内容
分数混合运算专项练习 430 题(有答案)
(10)12×(75%+ )
(1) + ×
(11)20÷ ÷ .
(2) × ﹣ ×
(12) ﹣ ﹣ +
(3) 3
(13)87×
(4) .
(14) ÷5+5÷
﹣( + )
(5)
(15) ÷( ﹣ × )
(6)2﹣ ÷ ﹣
(16)
÷8+ ×
(7)
(17)
(8) ÷ + ×
(18)
(9) × + ×
(19) ÷( ﹣ )÷ ,
1(20)〔 +( ﹣ )〕÷ , (30) ÷ ÷ ,
(21)42÷( ÷ ), (31) ×87+12÷ ,
(22)( ﹣ )÷ , (32)48×( ),
(23) × + ÷3, (33) ÷[ ×( )],
(24)12×( ÷ ), (34)[1﹣( )]× ,
(25) ×7+ ×7, (35) ,
(26)9× ÷9× , (36)
(37)
( + )÷ ,
(27)
(38)
×19﹣ ,
(28)
(39)
(29)( + )×32,
(40) + ÷ + ,
分数混合运算---- 2(50)( ﹣ )×100,
(41) ÷7+ × ,
(51) × + × ,
(42)2﹣ ÷ ﹣ ,
(52) × + ÷ ,
(43) ×( + )+ ,
(53)(12× ﹣7.3)÷ ,
(54) ÷〔( + )× ],
× + × ,
(44)
(55)( ×27﹣ )× ,
(45)3﹣ ﹣ ,
(56) × ×18×
(46) × + ÷5,
(57) ×13+ ×27
(47)( ﹣ )÷ + ,
(58) + ×5+ ×2
(48) +( + )× ,
(59)7×13×( ﹣ )
(49) × ÷( ﹣ ),
(60) ×40
分数混合运算---- 3÷ + +
(61)
(71)13× + ×15,
×( + )+
(62) (72)87× ,
(73) × ×32,
78×
(63)
(74) + × ,
÷( + )
(64)
(75) ×0.25+ × ,
(65) × ÷ ,
(76)25× × × ,
(66) ÷( + ),
(77)3÷ ﹣ × ,
(67) ×7+ ×11,
(78) ÷[( + )÷ ],
(68) ,
÷7× ,
(79)
(69)(15+ )× ,
×4 ,
(70) ﹣ × ,
(80)
分数混合运算---- 4(90)1﹣ ﹣ .
× ﹣ × ,
(81)
(91)0.25×19+5×
(1﹣ × )× ,
(82)
(92) ×13×30
(93) × + × +
﹣ ,
(83)
(94) ×7.6+2.4×0.6.
× × ,
(84)
(95)( ﹣ )×36,
(85) ×72﹣ ×23,
(96) ×32× ,
(86) ×25×40× ,
(97) × ﹣ × ,
(87) ﹣( + )
(98)3﹣1 ﹣ ,
(88) +( + )
(99) ÷ ÷ ,
(89) ﹣( ﹣ )
(100)[4﹣( ﹣ )]× ,
分数混合运算---- 5(101)20× +4× , (111)15× ÷
(102) ÷ +4× , (112)30×( + ﹣ )
(103)23.6×10%+13.6×910%,
(113) × +40%×
(104)( ﹣ )× ×8,
(114)10﹣( + ×2)
(105) + + ,
(115) + × ﹣
(106)10﹣ ﹣ ,
(116)[( ﹣1)÷ ]×
(117)12×( + ),
(107) + ﹣ + ;
(118) × ÷ × ,
(108)0.25+ + + ,
(119)1 × + ÷ ,
(109)3﹣ ﹣ ﹣ ,
(120)( + + )÷ ,
(110)15﹣5÷12﹣ ,
(121) × + × ,
分数混合运算---- 6(122)(2﹣ + )×12, (133) + + ,
(123) × + × , (134)18﹣18× ,
(124)6× × ×25, (135) + ÷ ,
(125) ﹣ × + , (136)36×( + )
(137)8×(36×125)
(126)16× ×(9× ),
(138) ﹣ × +
(127) ×[ ﹣( )],
(139)〔1﹣( ﹣ )〕÷
(128)6 × +3.5 ,
(140) × + ×
(129) × ÷ ,
(141)87×
(130) +( + )× ,
(142) ×7 +3 ×25%﹣
(131) ÷7+ × ,
(143)( ﹣40%)÷ ×
(132)7﹣ ,
分数混合运算---- 7(144) , (155)( + )÷
(145)[1﹣( )] , (156) × + ×
(146)0.625×36+ ×36﹣36, (157) ÷ ÷
(147)( + + + )× , (158) ×8÷
(148) + + + + + + + , (159)
(149) ÷28, (160)[1﹣( + )]÷ ,
(150) × , (161)( ﹣ )×45,
(151) ÷ , (162) ÷ ﹣ × ,
(152)16× , (163) ÷7+ × ,
(153) ÷[( + )× ] (164) ×9+ ,
(154)36× × ×42 (165)2﹣ ÷ ﹣ ,
分数混合运算---- 8(166)( + )×24, (177) ﹣( + ),
(167)100 ﹣23.75﹣76 , (178)15﹣5÷12﹣ ,
(168)3 ÷ +3 ÷ , (179) ﹣ + ﹣ ,
(169)7 +8.9+2 +6.1, (180) + + ,
(170)18×( + ﹣ ), (181) ,
(171) + + + , (182) ,
(172) ﹣ ﹣ , (183) ,
(173) ×[ ÷( ﹣ )], (184) ,
(174)48× +3÷7, (185)12×( + )
(175) ﹣( ﹣ ), (186)24× ﹣
(176) + ﹣ , (187) × ÷
分数混合运算---- 9(188)86× (198) × + ×
(189) × + ÷7 (199) ﹣ ﹣ ,
(200)2﹣ ﹣ ,
(190) ÷( + )
(201) ﹣( ﹣ ),
(191) ÷5+ × ,
(202) +( ﹣ ),
(192)( ﹣ )÷ ,
(203) +( + × ),
(193)( ﹣ )×( + ),
(204) ÷[ ×( + )],
(194) ×( ÷ )
(205)( ﹣ )÷ ,
(195) + ÷
(206) ÷7+ × ,
(196) ÷[1﹣( ﹣ )]
(207) × ÷ ,
(197)4÷1.25÷8
(208)36×( + ﹣ ),
分数混合运算---- 10(209) ×58+42÷8, (220) × ÷
(210)4﹣ ﹣ , (221)24×( + + )
(211)(15﹣14× )× , (222) ÷5+ ×
(212) ÷ ﹣ ÷ , (223) ×0.375÷
(213)24×( + ), (224)( ﹣ )×( + )
(214)( × )÷ , (225) ÷ + +
(215)( + )×9×17, (226)3﹣ × ﹣
(216) ÷ × , (227) ÷[1÷( ﹣ )]
(217)3﹣1÷( + × ), (228) ÷13+ × ,
(218)1.75× + × + , (229) × ÷ × ,
(219)87× (230)6﹣2 +1 ,
分数混合运算---- 11(231)5×32×12.5,
(242) ﹣ ÷ × ,
(232) × ,
(243) ÷[( )× ],
(233)( )×(1+ ),
(244)(9 )×2
(234)( )× + ,
(245)11
(235)32 ﹣17.5﹣2.5,
(246)(3 )÷3
(236) ×55 ,
(247)
(237) +5× ×5,
(248) ×( ﹣ )
(238)( ﹣ )×8÷ ,
(249)4×[( + )÷6]
(239) ÷7+ × ,
(250) × + ÷15
(240)120÷[ ﹣(1﹣ )],
(251)(6﹣ ×32)+
(241)( ﹣ )÷ ,
(252) ÷ ﹣ ÷ .
分数混合运算---- 12(253)12 ﹣5 ﹣4 , (264)( ﹣ + )×24,
(254)24 ÷6, (265) × +1.25× +125%,
(255)1 ×7÷1 ×7, (266)20÷[1﹣( + )],
(256)( )×35, (267)[2﹣( ﹣1.5)÷ ]× ,
(268)540÷12×9+482
(257)4 × × × ,
(270) ( ),
(258) ,
(271)75%× 2.5,
(259) + × + ,
(272) ,
(260)26×( ﹣ )÷ ,
(273)2 ÷(2.2+0.2) 6.9,
(261)( ﹣ + )÷ ,
(274) 0.5 ,
(262) × + × +3÷19,
(275) ,
(263) ÷ + × ,
分数混合运算---- 13(276) , (287)[ +( ﹣ )]÷40%,
(277) , (288)12 + ×
(278)( )×24, (289)(2.9+3.1)× ﹣2
(279)3﹣ ÷ ﹣ , (290)2 × ﹣ .
(280) × + ÷7, (291)( ﹣ )÷ + ,
(281)19÷[( + )× ], (292)19÷( + ),
(282) [7.8+ ×(2.75+1.25)], (293)55 ÷11,
(283) [( )÷ ], (294)0.6× +60%× + × ,
(284) ÷ × , (295)( + ﹣ )×24,
(285)(7.5+35× )÷ , (296)5×( + )﹣ ,
(286) ×6.3﹣ ×4.9, (297) ﹣( ),
分数混合运算---- 14(298) + + , (309)( + )×48,
(299) ﹣ + , (310)12 ÷25,
(300)1﹣ ﹣ (311) ÷ ,
(301) ﹣ ﹣ , (312) ÷23+ × ,
(302) +( ﹣ ), (313) ÷ ÷ ,
(303)1﹣ , (314) ×3÷ ,
(304) ( ), (315)( ﹣ × )÷ ,
(305)4÷ ÷ , (316)( + )×32,
(306) 2, (317) × + × ,
(307)98÷( ), (318) ,
(308) 24+24× , (319)88×( + ),
分数混合运算---- 15(320) × ×16, (331)(25+ )×4,
(321) + × , (332)(15﹣14× )÷ ,
(322)44﹣72× , (333)( )×8÷ ,
(323) , (334) +1÷( ﹣ ),
(324) ×16× , (335)( + ﹣ )×24,
(325) ÷12÷ , (336) +( ﹣ )× ,
(326) ÷[( ﹣ )×24], (337)0.625×9.6+62.5%× ,
(327) × + ÷ , (338)9 +99 +999 +9999 + ×4,
(328) + + × , (339)( ﹣ + )×84+101,
(329) ÷( + ), (340)3.5×1 +0.35×10+2 ×350%,
(330)(330) , (341)[2 +(3.4﹣2 )×4.5]÷1 ,
分数混合运算---- 16(342) (353)
(343) (354)3.6×2 ÷16.9÷(3 ×1.1 6)×1.3
(344) (355) + + +…+
(345) (356) ÷ × ,
(346)6﹣ × ﹣ (357)( ﹣ + )×12,
(347)〔1﹣( ﹣ )〕÷ (358)7× ÷7× ,
(348) (359)1.5× ﹣ × ,
(349) (360)( ﹣ )÷ ,
(350)5+3.6×2.5÷0.48
(361) × + ÷ ,
(351)
(362)7÷ ﹣ ÷7,
(352)
(363) × ÷( ﹣ ),
分数混合运算---- 17(364) ×3.6+5.2×0.5+1.2×50%, (375)0.42×1 +3 ,
(365)[ ﹣( + )]÷ , (376)1 ÷3.6× ,
(366)11.32﹣(7 +1.32), (377)15 ×7+3 ÷ ,
(367)89× , (378)3 ﹣ ×3.6,
(368) ÷ ÷ , (379) ×1 ÷3 ,
(369) ÷4× , (380)0.44+ + +0.6,
(370) ÷ + × , (381) +2 ×2 ﹣2 ÷ ,
(371) ÷[ ﹣( ﹣ )], (382)(4 ﹣2 )÷(1 +2.4),
(383)48200﹣156×720÷39,
(372) ×( + )÷ ,
(384)(3.06÷0.25+2.76)×0.2,
(373)[ ﹣( + )]÷ ,
(385)[3 ÷(3﹣2.4× )]×0.2,
(374)( ﹣ + )×42,
分数混合运算---- 18(386) + ﹣ , (397) ×13﹣ ,
(387)25× × = ; (398) ÷〔 ×(1﹣ )〕,
(388) × × = ; (399) ÷ + × ,
(389) ÷6÷ (400) ﹣ ﹣ ,
(390) × ÷ , (401) ﹣ ÷ ,
(391)15÷ × , (402) ÷ ÷ ,
(392) ﹣ + , (403)( + )× ,
(404)13.2÷(3.2×3﹣0.8),
(393) + ﹣ ,
(405) ÷[( ﹣ )×12],
(394) ﹣( + ),
(406) ×45+ ÷ ,
(395) + + + ,
(407) ﹣ × ,
(396) × ÷ × ,
分数混合运算---- 19(408)( + )÷ , (419) ÷[ ×( + )]
(409)( × + )÷(11﹣ ), (420) ÷ + ×
(410) × × × , (421)5.58﹣ +5.42﹣
(411) × + × , (422)999 +99 +9 + .
(412) ÷[( + )× ], (423) × ﹣ ÷ ,
(413)( + × )÷ , (424)1﹣ ÷ ﹣ ,
(414) ÷ + × , (425) ÷ ﹣ ÷ ,
(415) + × + , (426)( + × )÷ ,
(416)( ﹣ )÷ , (427) ÷ + × ,
(417) ÷( ﹣ ) (428) ×( + )+ ,
(418) ×[ ﹣( ﹣ )] (429) + ,
分数混合运算---- 20(430)4 4,
参考答案:
分数混合运算---- 21(1) + × =( + )× =7﹣ ,
= × + × , =1× = ;
=( + )× , = . (14) ÷5+5÷ ,
=1× , (8) ÷ + × = × +5× ,
= ; = × + , = +9,
(2) × ﹣ × = , = ;
= ﹣ , = ; (15) ÷( ﹣ × ),
= ﹣ , (9) × + × = ÷( ﹣ ),
= ; =( + )× , = × ,
(3) 3 =1× , = .
= × ×3, = ; (16)
=12;
(10)12×(75%+ ) = + ﹣
(4) .
=12×( + ), =1﹣
=1.6× ,
=12× +12× , = ;
=3.
﹣( + ) =9+10,
(17)
(5)
=19;
= ﹣ (11)20÷ ÷ . = + +
= ﹣ =20× × , = + +
=1 ; =20×( × ), =1+
(6)2﹣ ÷ ﹣ =20× , =1 ;
=30
=2﹣( × ﹣ ) (18)
(12) ﹣ ﹣ + ,
=2﹣( ) = + +( ﹣ )
=( + )﹣( + ),
=2﹣1
=1+( ﹣ )
=1; =2﹣1,
÷8+ × =1;
=1+
(7)
(13)87× ,
= × + × =1 .
=(88﹣1)× ,
分数混合运算---- 22(19) ÷( ﹣ )÷ , =( + )×7, (32)48×( ),
=1×7,
= ÷( ﹣ )÷ , =48× ﹣48× +48× ,
=7;
=22﹣20+18,
= ÷ ÷ , (26)9× ÷9× ,
=20;
= × ×3, =1÷9× , (33) ÷[ ×( )],
=5;
= × , = ÷[ × ],
(20)〔 +( ﹣ )〕÷ ,
= = ÷ ,
=〔 +( ﹣ )〕÷ ,
( + )÷ , =2;
(27)
=〔 + 〕÷ , (34)[1﹣( )]× ,
= ÷ ,
=〔 + 〕÷ , =[1﹣ ]× ,
= × ,
= ÷ , = × ,
= ;
= × , = ;
×19﹣ ,
(28)
= (35) ,
= ×(19﹣1),
(21)42÷( ÷ ), =24× +56× ,
= ×18,
=42 , =(24+56)× ,
=13;
=15;
(29)( + )×32, =80× ,
(22)( ﹣ )÷ ,
=30
= ×32+ ×32,
= , (36)
=24+20,
=44;
= ; = × + × ,
(30) ÷ ÷ ,
(23) × + ÷3, =( + )× ,
= × × ,
= ×( ), =1× ,
= ;
= ×1, = ;
(31) ×87+12÷ ,
= ; (37)
= ×87+12× ,
(24)12×( ÷ ), =1÷ ,
= ×(87+12),
=12× , = ;
= ×99,
=56;
(38)
=27.
(25) ×7+ ×7,
分数混合运算---- 23=96× , =2+2 , = ×100﹣ ×100,
=21; =75﹣12,
=4
=63;
(39)
× + × ,
(51) × + × ,
(44)
=(86+1)× ,
= ×( + ), = ×( + ),
=86× + ,
= ; = ×2,
=85+ ,
(45)3﹣ ﹣ , = ;
=85 .
=3﹣( + ), (52) × + ÷ ,
(40) + ÷ + ,
=3﹣1,
= × + × ,
=2;
= + + ,
(46) × + ÷5, =( + )× ,
= +( + ),
= × + × , =1× ,
= +1,
= ×( + ), = ;
=1 ;
= ; (53)(12× ﹣7.3)÷ ,
(41) ÷7+ × ,
(47)( ﹣ )÷ + , =(10﹣7.3) ,
= × + × ,
= ×2+ , =2.7× ,
=( )× ,
=1.2;
= + ,
= × , (54) ÷〔( + )× ],
=1;
= ; (48) +( + )× , = ÷〔 × 〕,
(42)2﹣ ÷ ﹣ , = + × , = × ,
=2﹣ , = + , = ;
=2﹣( ), = ; (55)( ×27﹣ )× ,
=2﹣2,
(49) × ÷( ﹣ ), =[( ×(27﹣1)]× .
=0;
(43) ×( + )+ , = × ÷ , =[ 26]× ,
= × + × + , = × × , =18× ,
=7
=2+ , = .
(56) × ×18×
=2+( ), (50)( ﹣ )×100,
分数混合运算---- 24=( × )×(18× ), = + + = ×(7+11),
= ×1, =2+ = ×18,
=10;
= ; =2+( )
(68) ,
(57) ×13+ ×27 =2+
=[1﹣ ]÷ ,
=(13+27)× , =2+
= ÷ ,
=40× , = ;
= .
=30; 78×
(63)
(58) + ×5+ ×2 (69)(15+ )× ,
=(79﹣1)×
=(1+5+2)× , =15× + × ,
=79× ﹣1×
=8× , =2+ ,
=3﹣
=5;
=2 ;
(59)7×13×( ﹣ ) = ;
(70) ﹣ × ,
÷( + )
=7×13× ﹣7×13× ,
(64)
= (1﹣ ),
=104﹣98,
= ÷( )
=6;
= ,
(60) ×40 = ÷
= ;
= ×(39+1), =
(71)13× + ×15,
= ×39+ , =
= ×(13+15),
=38+ , (65) × ÷ ,
= 28,
=38 = × × ,
=6;
÷ + +
= ×( × ), (72)87× ,
(61)
= × + + = × , =86× +1× ,
=1;
= + + =3 ,
(66) ÷( + ),
=1+ =3 ;
= ÷ ,
= ; (73) × ×32,
= ;
×( + )+
=( 4)×( 8),
(62)
(67) ×7+ ×11,
=5×1,
分数混合运算---- 25=5;
= ; = + ﹣ ,
(74) + × ,
× ﹣ × ,
=1﹣ ,
(81)
= ,
=0;
= ;
(1﹣ × )× ,
=3 .
(82)
(90)1﹣ ﹣ .
(75) ×0.25+ × , =(1﹣ )× ,
= ﹣ ,
= × + × , = ;
=
﹣ ,
=( )× ,
(83)
(91)0.25×19+5×
=1× , = ﹣ ,
= ×19+5× ,
=2,
= ;
× × ,
= ×(19+5),
(84)
(76)25× × × ,
= = ×24,
=(25× )×( × ),
=6;
(85) ×72﹣ ×23,
=10× , (92) ×13×30
=(72﹣23)× ,
=1;
= ×30×13,
(77)3÷ ﹣ × , =49× ,
=4×13,
=35; =52;
=6﹣ × ,
(86) ×25×40× , (93) × + × +
=6﹣ ,
=( 40)×(25× ), = × + × + ,
=5 ;
=22×9,
= ×( + )+ ,
=198.
(78) ÷[( + )÷ ],
(87) ﹣( + ) = + ,
= ÷[ ÷ ],
=1;
= ﹣ ,
= ÷ , (94) ×7.6+2.4×0.6.
= ;
=1 =0.6×7.6+2.4×0.6,
÷7× , =0.6×(7.6+2.4),
(88) +( + )
(79)
=0.6×10,
=6
= × , = + + ,
(95)( ﹣ )×36,
= ; =1+ ,
= ×36,
×4 ,
=1 ;
(80)
=20;
=30× , (89) ﹣( ﹣ ) (96) ×32× ,
分数混合运算---- 26(103)23.6×10%+13.6×910%,
= ×4×8× , =15﹣( + ),
=2.36+123.76,
=126.12; =15﹣1,
= ,
=14
(104)( ﹣ )× ×8,
=3×5,
(111)15× ÷
=15.
= × ×8,
(97) × ﹣ × , =15× ×
=
= , =2 ;
(105) + + ,
= , (112)30×( + ﹣ )
= +( + ),
= ; =30× +30× ﹣30×
= +1,
=12+5﹣8
(98)3﹣1 ﹣ ,
=9;
=1 ;
=3﹣(1 + ), (113) × +40%×
(106)10﹣ ﹣ ,
=3﹣2,
= × + ×
=1;
=10﹣( + ),
(99) ÷ ÷ , = ×( + )
=10﹣1,
=9;
= × , = ×1
= ; (107) + ﹣ + ; = ;
(100)[4﹣( ﹣ )]× , =( ﹣ )+( + ), (114)10﹣( + ×2)
=[4﹣ ]× , = +1, =10﹣( + )
= , =1 ; =10﹣1
= (108)0.25+ + + , =8 ;
(101)20× +4× , =(0.25+0.75)+( + ), (115) + × ﹣
=1+1,
=(20+4)× , = + ﹣
=2;
=24× , (109)3﹣ ﹣ ﹣ , = ;
=14;
=(3﹣ )﹣( + ), (116)[( ﹣1)÷ ]×
(102) ÷ +4× ,
=2 ﹣1, =[ ]×
= ×4+4× ,
=1 ; =1×
=( + )×4,
(110)15﹣5÷12﹣ , =1
=1×4,
=4;
分数混合运算---- 27(117)12×( + ), (123) × + × , = × × ,
=12× +12× , = ×( + ), = × ,
=9+6,
= ×1, = ;
=15;
(118) × ÷ × , = ; (130) +( + )× ,
= ÷ × , (124)6× × ×25, = + × ,
= × , =(6× )×(25× ), = + ,
=1×10,
= ; = ;
=10;
(119)1 × + ÷ , (125) ﹣ × + , (131) ÷7+ × ,
=1+ , = ×(1﹣ )+ , = × + × ,
=1 = × + , =( + )× ,
(120)( + + )÷ , = + , =1× ,
=( + + )÷ , = = .
=(2+ )×7, (132)7﹣ ,
(126)16× ×(9× ),
=2×7+ ×7, =7﹣( ),
=16× × ,
=14+2, =7﹣1,
=16; =12; =6;
(121) × + × , (127) ×[ ﹣( )], (133) + + ,
= ×( + ), = ×[ ], =( )+ ,
= ×1, = × , =1 ;
= ; = ; (134)18﹣18× ,
=18﹣3,
(122)(2﹣ + )×12, (128)6 × +3.5 ,
=15;
=2×12﹣ ×12+ ×12, =6.5× +3.5× , (135) + ÷ ,
=24﹣ +10, =(6.5+3.5)× , = + × ,
=6.
=22 +10, = ,
(129) × ÷ ,
=32 ; = .
= × × ,
分数混合运算---- 28(136)36×( + ) = ; =1﹣ + ﹣ + ﹣ + ﹣ + ﹣ +
=36× +36× , (143)( ﹣40%)÷ × ﹣ + ﹣ + ﹣ ,
=8+21,
=(1.4﹣0.4)× × , =1﹣ ,
=29;
(137)8×(36×125)
=1× × , = .
=8×125×36,
=1000×36,
= . (149) ÷28,
=36000;
(138) ﹣ × + (144) , = × ,
= ﹣ + , = × + × , = ;
= ; =( + )× , (150) × ,
(139)〔1﹣( ﹣ )〕÷ =1× , = ;
=(1﹣ )÷ , = ; (151) ÷ ,
= ÷ , (145)[1﹣( )] , = × ,
=2
=[1﹣ ]×4, = ;
(140) × + ×
= ×4, (152)16× ,
=( + )× ,
= ; =
=1× ,
(146)0.625×36+ ×36﹣36, (153) ÷[( + )× ]
= ;
=(0.625+0.375﹣1)×36,
= ÷{ × }
=0×36,
(141)87×
=0;
= ÷
=(86+1)× , (147)( + + + )× ,
=3 .
=86× + , =[( + )+( + )]× ,
(154)36× × ×42
=3+ , =[1+1]× ,
=(36× )×( ×42)
=3 ; =2× ,
= ×12
(142) ×7 +3 ×25%﹣ = ;
=30;
= ×7 +3 × ﹣ , (148) + + + + + + + (155)( + )÷
=(7 +3 ﹣1)× , , = × + ×
=2+1
=10× ,
=3;
分数混合运算---- 29(156) × + × =( )× , =3 ×( ),
= ×( + ) =1× , = ,
= ×1 = ; = ;
= ; (163) ÷7+ × , (169)7 +8.9+2 +6.1,
(157) ÷ ÷ = × × , =(7 +2 )+(6.1+8.9),
=10+15,
= ÷ =( )× ,
=25;
=1 = × , (170)18×( + ﹣ ),
=1 ; = ; =18× +18× ﹣18× ,
=6+10﹣3,
(158) ×8÷ (164) ×9+ ,
=13;
= ÷ =7+ , (171) + + + ,
= =7 ; = ,
= ; (165)2﹣ ÷ ﹣ , = ,
(159) =2﹣ × , = .
=24× +24× +24× =2﹣( + ), (172) ﹣ ﹣ ,
=8+9+14 =2﹣2,
= ﹣( ),
=31 =0
(160)[1﹣( + )]÷ , (166)( + )×24, = ﹣1,
=[1﹣ ]×4, = + ×24+ ×24, = ;
=12+8+4,
= ×4, (173) ×[ ÷( ﹣ )],
=24;
=1 ; (167)100 ﹣23.75﹣76 , = ×[ ÷ ],
(161)( ﹣ )×45, =100 ﹣(23.75+76.25), = × ,
= ×45﹣ ×45, =100 ﹣100, = ;
=15﹣9,
= ; (174)48× +3÷7,
=6;
(162) ÷ ﹣ × , (168)3 ÷ +3 ÷ , =48× ,
= × × , =3 × +3 × , =(48+1)× ,
分数混合运算---- 30=49× , = × + × , =4 ;
=21.
= +1, (189) × + ÷7
(175) ﹣( ﹣ ),
=1 ; = × + ×
= ﹣ ,
(183) , =( + )×
= ;
=( ﹣ )×24, = ×
(176) + ﹣ ,
= ×24﹣ ×24, = ;
= ﹣ ,
=15﹣10,
(190) ÷( + )
=5;
= ;
(184) , = ÷
(177) ﹣( + ),
= ×21+ ×21, = .
= ﹣ ,
=( + )×21, (191) ÷5+ × ,
= ;
=1×21,
= × + × ,
=21
(178)15﹣5÷12﹣ ,
(185)12×( + ) =( + )× ,
=15﹣ ﹣ ,
=12× +12× =1× ,
=15﹣( + ),
=8+2
= ;
=15﹣1, =10;
=14;
(186)24× ﹣ (192)( ﹣ )÷ ,
(179) ﹣ + ﹣ ,
= ﹣ = × ,
=( + )﹣( + ),
=2 ; = ;
=1﹣1,
=0;
(187) × ÷ (193)( ﹣ )×( + ),
(180) + + ,
= × × = × ,
= .
= ; = .
(181) ,
(188)86× (194) ×( ÷ )
= ÷ ,
=(85+1)× = × ,
= ;
=85× +1× = ;
(182) ,
=4+ (195) + ÷
=( + )× ,
分数混合运算---- 31= + , = (208)36×( + ﹣ ),
=2;
(203) +( + × ), =36× +36× ﹣36× ,
(196) ÷[1﹣( ﹣ )]
=24+6﹣27,
= +( + ),
=30﹣27,
= ÷[1﹣ ],
=3;
=( )+ ,
= , (209) ×58+42÷8,
=1+ ,
= ; =(58+42)× ,
=1 ;
(197)4÷1.25÷8
=100× ,
=4÷(1.25×8),
(204) ÷[ ×( + )],
=4÷10, =12.5;
=0.4;
= ÷[ × + × ], (210)4﹣ ﹣ ,
(198) × + ×
= ÷[ ], =4﹣( ),
=( + )× ,
=4﹣1,
= × ,
=3;
=1× ,
= ; (211)(15﹣14× )× ,
= ;
(205)( ﹣ )÷ , =(15﹣8)× ,
(199) ﹣ ﹣ ,
=( ﹣ )× , =7× ,
= ﹣( + ),
= × × , =2 ;
= ﹣ ,
= , (212) ÷ ﹣ ÷ ,
= ﹣ ,
= ; = ,
= ;
(206) ÷7+ × , =
(200)2﹣ ﹣ ,
= × + × , (213)24×( + ),
=2﹣( + ),
=( )× , =24× +24× ,
=2﹣1,
=1; =9+18,
= × ,
=27;
(201) ﹣( ﹣ ),
= (214)( × )÷ ,
= ﹣ + ,
(207) × ÷ , =( ﹣ )÷ ,
= ;
= , = × ,
(202) +( ﹣ ),
= ; = ;
= + ,
分数混合运算---- 32=23;
(215)( + )×9×17, = ;
(222) ÷5+ ×
= ×9×17+ ×9×17, (228) ÷13+ × ,
= × + ×
=6+ , = × + × ,
=( + )×
= ; =( + )× ,
=1×
(216) ÷ × , =1× ,
= ;
= × × , = ;
(223) ×0.375÷
= ; (229) × ÷ × ,
= × ÷
(217)3﹣1÷( + × ), = × × × ,
= ÷
=3﹣1÷1,
= ;
=2;
= ;
(218)1.75× + × + , (230)6﹣2 +1 ,
(224)( ﹣ )×( + )
= × + × + , =3 +1 ,
= ×
= ×( + +1), =5 ;
=
(231)5×32×12.5,
= × ,
=5×4×8×12.5,
(225) ÷ + +
=(5×4)×(8×12.5),
=
=20×20,
= × + + ,
=400
(219)87×
= + + , (232) × ,
=(86+1)×
=1 ; = ,
=86× +1×
(226)3﹣ × ﹣ = ;
=3+
=3﹣ ﹣ , (233)( )×(1+ ),
=3 ;
=3﹣( + ), =( )× ,
(220) × ÷
=3﹣1,
= × ,
=2;
= ×
(227) ÷[1÷( ﹣ )] = ;
= ;
= ÷[1÷( )], (234)( )× + ,
(221)24×( + + )
= ÷[1÷ ], = × ,
=24× +24× +24×
= × , = ,
=9+4+10
分数混合运算---- 33= ; = ﹣ × × , = × ,
(235)32 ﹣17.5﹣2.5, = ﹣ , = ;
=40﹣20,
= ; (248) ×( ﹣ )
=20;
(236) ×55 , (243) ÷[( )× ], = ×( ),
=10+15,
= ÷[ × ], = ,
=25;
(237) +5× ×5, = , = ;
=3
= ×(1+5+5), (249)4×[( + )÷6]
(244)(9 )×2
= ×11, =4×[( )× ],
=( ﹣ )× ﹣ ,
=5
=4×[ × ],
(238)( ﹣ )×8÷ , =37×( ﹣ )× ﹣ ,
=4× ,
= ×8×6, =37× × ﹣ ,
=1;
=9;
= ﹣ , (250) × + ÷15
(239) ÷7+ × ,
= ; = × + × ,
= × + × ,
(245)11
=( )× ,
=( + )× ,
=1× ,
=1× , = × × × ,
= ;
= ; = × × ×
(251)(6﹣ ×32)+
(240)120÷[ ﹣(1﹣ )], ,
=(6﹣4)+ ,
=1;
=120÷[ ﹣ +1],
(246)(3 )÷3 =2+ ,
=120÷1,
=120;
=2 ;
(241)( ﹣ )÷ ,
=( + ﹣ ﹣ )× , (252) ÷ ﹣ ÷ .
=( ﹣ )×
=( + ﹣ ﹣ )× , = ﹣ ,
= × ﹣ × ,
= × , =( )× ,
= ﹣ ,
= =( ﹣ )× ,
=1;
(242) ﹣ ÷ × , (247) = ,
分数混合运算---- 34=2×1.25,
= . = + + ,
=2.5;
(253)12 ﹣5 ﹣4 , = +( + ), (266)20÷[1﹣( + )],
=12 ﹣(5 +4 ), =1 ; =20÷[1﹣ ],
=12 ﹣10, (260)26×( ﹣ )÷ , =20÷ ,
=48;
=2 ; =26×30× ﹣26×30× ,
(267)[2﹣( ﹣1.5)÷ ]×
=300﹣104,
(254)24 ÷6,
=196;
,
=(24+ )÷6, (261)( ﹣ + )÷ ,
=[2﹣( ﹣ )× ]× ,
=24× + × , =( ﹣ + )×36,
=[2﹣ × ]× ,
=4+ , = ×36﹣ ×36+ ×36,
=[2﹣ ]× ,
=16﹣15+24,
=4 ;
=25;
= × ,
(255)1 ×7÷1 ×7, (262) × + × +3÷19,
=12;
(268)540÷12×9+482
=1 ÷1 ×7×7, = + + ,
=45×9+482,
=1×7×7, =405+482,
= + ,
=49; =887
(256)( )×35, = + , (270) ( ),
= ×35+ ×35, = , = ,
=28+30, =1
= ;
=58;
(263) ÷ + × ,
(257)4 × × × , (271)75%× 2.5,
= + ,
= × × × , = 2.5,
= ;
= ; = ;
(264)( ﹣ + )×24,
(258) , (272) ,
= ×24﹣ ×24+ ×24,
=12.25﹣2.25﹣6 , = ,
=20﹣6+10,
=24;
=10﹣6 , = ;
(265) × +1.25× +125%,
=3 . (273)2 ÷(2.2+0.2) 6.9,
= ×1.25+1.25× +1.25,
(259) + × + , =2 ÷2.4 6.9,
=( + +1)×1.25,
=1+4.6,
分数混合运算---- 35=5.6;
=( + )× , = ×1.4,
(274) 0.5 ,
=0.8;
=1× ,
=(0.5+ )× , (287)[ +( ﹣ )]÷40%,
= ;
=1× , =[ + ﹣ ]÷ ,
(281)19÷[( + )× ],
= = × ,
=19÷[ × ],
(275) , =
=19÷ ,
= ×(5× ), (288)12 + ×
=24
= × , (282) [7.8+ × =12 + × ,
(2.75+1.25)] ,
= ; =12 + ,
= [7.8+ ×4],
=13;
(276) ,
= [7.8+1], (289)(2.9+3.1)× ﹣2
= ×( + ),
= 8.8, =6× ﹣2 ,
= ×1,
=1;
=20﹣2 ,
= ; (283) [( )÷ ],
=17 ;
(277) , = [ ÷ ],
(290)2 × ﹣ .
= ×12+ ×12+ ×12, = ,
=2 × ﹣ × ,
=6+4+2,
= .
=12
=( ﹣ )× ,
(278)( )×24, (284) ÷ × ,
= × ,
= ×24+ ×24﹣ ×24, = × × ,
= .
=8+6﹣1,
= ;
=13;
(291)( ﹣ )÷ + ,
(279)3﹣ ÷ ﹣ , (285)(7.5+35× )÷ ,
= ÷ + ,
=3﹣ ﹣ , =(7.5+35× )× ,
= + ,
=3﹣( + ), =7.5× +35× × ,
= ;
=3﹣1, =7+7,
=2; =14;
(292)19÷( + ),
(280) × + ÷7, (286) ×6.3﹣ ×4.9,
=19÷ ,
= × + × , = ×(6.3﹣4.9),
=12;
分数混合运算---- 36(293)55 ÷11, (299) ﹣ + , = ,
=(55+ )× , = ﹣ , = ;
=55× + × , = ; (307)98÷( ),
=5+ , (300)1﹣ ﹣ = ; =98÷( ),
=5 ; (301) ﹣ ﹣ , =98÷ ,
(294)0.6× +60%× + × , = ﹣ ﹣ , =98× ,
=420;
=0.6×( + + ), = ;
(308) 24+24× ,
=0.6×1,
(302) +( ﹣ ),
=0.6;
=24×( ),
(295)( + ﹣ )×24, = + ,
=24×1,
=24
= ×24+ ×24﹣ ×24, = ﹣ + ,
(309)( + )×48,
=8+3﹣4,
=
=11﹣4,
= ×48+ ×48,
=7;
(303)1﹣ ,
=40+18,
(296)5×( + )﹣ ,
=58;
= ﹣ ,
=5× +5× ﹣ , (310)12 ÷25,
= ;
= + ﹣ , = × ,
(304) ( ),
= ﹣ , = ;
= ﹣ ﹣ ,
= (311) ÷ ,
= ,
(297) ﹣( ), = ×(78﹣1),
= ﹣ ,
= ﹣ + , = ×78﹣ ×1,
= ,
= + , =59﹣ ,
= ;
= ; =58 ;
(305)4÷ ÷ ,
(298) + + , (312) ÷23+ × ,
=4× ,
=( + )+ , = × + × ,
= ;
=1+ , =( + )× ,
(306) 2,
=1 ; =1× ,
分数混合运算---- 37= ; (319)88×( + ), = ÷[20﹣9],
(313) ÷ ÷ , =88× +88× , = ÷11,
=33+2,
= ÷( × ), = ;
=35;
= ÷1, (320) × ×16, (327) × + ÷ ,
= ; = ×( ×16), = × + × ,
(314) ×3÷ , = ×2, =( + )× ,
= ×3× , = ; =1× ,
= × ×3, (321) + × , = ;
=4×3,
= + , (328) + + × ,
=12;
(315)( ﹣ × )÷ , = ; = + + ,
=( ﹣ )× , (322)44﹣72× , = +( + ),
=44﹣30,
= × ﹣ × , = +2,
=14;
= ﹣ , (323) , =3 ;
= ; = ×(14+1), (329) ÷( + ),
(316)( + )×32, = ×15, = ÷ ,
=14
= ×32+ ×32, =
(324) ×16× ,
=24+20,
(330) ,
=44;
=20× ,
(317) × + × , = × × ,
= ;
= ×( + ), = ;
(325) ÷12÷ ,
= ×1, (331)(25+ )×4,
= × × ,
= ; =25×4+ ×4,
= × ,
(318) , =100+ ,
= ;
= × , =102 ;
(326) ÷[( ﹣ )×24],
= ; (332)(15﹣14× )÷ ,
= ÷[ ×24﹣ ×24],
分数混合运算---- 38=10×0.625, =0;
=(15﹣8) ,
=6.25
(343)
=7 , (338)9 +99 +999 +9999 +
=78﹣(4.5+45.5+22),
×4, =78﹣72,
=7× ,
=6;
=9+99+999+9999+ ×5,
=18 ; (344)
=(10﹣1)+(100﹣1)+(1000﹣
1)+ (10000 ﹣1)+4,
(333)( )×8÷ , =2﹣( ﹣ )× ,
=10+100+1000+10000﹣4+4,
=11110;
=( ×8﹣25%×8)÷ × , =2﹣ × ,
(339)( ﹣ + )×84+101,
=(3﹣2)÷ × , =2﹣ ,
= 84﹣ ×84+ ×84+101,
=1× × , = ;
=66﹣60+15+101,
=3 =122;
(345)
(334) +1÷( ﹣ ), (340)3.5×1 +0.35×10+2
= ×0.25+0.25× ﹣0.25,
×350%,
= +1÷( ﹣ ),
=3.5×1 +3.5+2 ×3.5, =( + ﹣1)×0.25,
= +1÷ ,
=0×0.25,
=3.5×( + +1),
=0;
= +1× ,
=3.5×5,
(346)6﹣ × ﹣
=17.5;
= ;
(341)[2 +(3.4﹣2 )×4.5]÷1 =6﹣ ﹣ ,
(335)( + ﹣ )×24,
, =6﹣( + ),
= ×24+ ×24﹣ ×24,
=6﹣1,
=[2 +(3 ﹣2 )×4 ]÷1 ,
=20+16﹣18, =5;
=18;
=[ +( ﹣ )× ]÷1 , (347)〔1﹣( ﹣ )〕÷
(336) +( ﹣ )× ,
=[ + ]÷ , =[1﹣( ﹣ ))]× ,
= +( ﹣ )× ,
=[2 + ]× , =[1﹣ ]× ,
= + × ,
=6× , = ,
= + ,
=4 . = ;
= + ,
(342) (348)
= ;
= ﹣0.4+ ﹣0.6, = ﹣ × ﹣ ,
(337)0.625×9.6+62.5%× ,
=( + )﹣(0.4+0.6), = ﹣ ﹣ ;
=0.625×9.6+0.625×0.4,
=(9.6+0.4)×0.625, =1﹣1,
分数混合运算---- 39= ( + ), = ; = × ,
= ﹣1, (354)3.6×2 ÷16.9÷(3 ×1.1 = ;
6)×1.3
= ; (360)( ﹣ )÷ ,
=3.6×2.32÷16.9÷3.6÷1.16×1
.3,
(349) = × ,
=(3.6÷3.6)×(2.32÷1.16)
×1.3÷16.9,
= × + × , = ;
=1×2×1.3÷16.9,
=2.6÷16.9,
=( + )× , (361) × + ÷ ,
= ;
=1× , = × + × ,
(355) + + +…+
= ; = ×( + ),
=( )+( ﹣ )+( ﹣ )+…+(
(350)5+3.6×2.5÷0.48
= × ,
=5+9×0.4×2.5÷0.48,
﹣ ),
=5+9×(0.4×2.5)÷0.48,
=
=5+9×1÷0.48,
=1﹣ + ﹣ + ﹣…+ ﹣ ,
=5+18.75,
(362)7÷ ﹣ ÷7,
=23.75;
=1﹣ ,
(351) =7× ﹣ × ,
= .
=22﹣ ﹣ , = ﹣ ,
(356) ÷ × ,
=22﹣( + ), = ;
= × ,
=22﹣1,
(363) × ÷( ﹣ ),
=21;
= ;
(352) = × ÷ ,
(357)( ﹣ + )×12,
=299÷299 , = ×3× ,
= ×12﹣ ×12+ ×12,
=299× =1× ,
=4﹣3+2,
=3;
=299× = ;
(358)7× ÷7× ,
= ; (364)
=1÷7× ,
×3.6+5.2×0.5+1.2×50%,
(353)
=0.5×3.6+5.2×0.5+1.2×0.5,
= × ,
=0.5×(3.6+5.2+1.2),
=[ ﹣ ﹣ ]× ,
=0.5×10,
= ;
=5;
=[1﹣ ]× ,
(359)1.5× ﹣ × , (365)[ ﹣( + )]÷ ,
= ,
=( ﹣ )× , =[ ﹣ ]÷ ,
分数混合运算---- 40= ÷ , = ÷[0+ ], (378)3 ﹣ ×3.6,
= ; = ÷ , =3 ﹣0.9,
(366)11.32﹣(7 +1.32), = ; = ;
=11.32﹣1.32﹣7 , (372) ×( + )÷ , (379) ×1 ÷3 ,
=10﹣7 , = × ÷ , = × × ,
=2 ; = , =
(367)89× , = ; (380)0.44+ + +0.6,
=0.44+0.4+0.56+0.6,
=(88+1)× , (373)[ ﹣( + )]÷ ,
=(0.44+0.56)+(0.4+0.6),
=1+1,
=88× +1× , =[ ﹣ ]÷ ,
=2;
=87+ , = , (381) +2 ×2 ﹣2 ÷ ,
=87 = = + ﹣3,
=5﹣3,
(368) ÷ ÷ , (374)( ﹣ + )×42,
=2;
= ÷ , = ×42﹣ ×42+ ×42, (382)(4 ﹣2 )÷(1 +2.4),
=24﹣8+12,
= ; =2 ÷3 ,
=16+12,
=28;
(369) ÷4× , = × ,
(375)0.42×1 +3 ,
= × , = ;
=0.6+3 ,
(383)48200﹣156×720÷39,
= ;
=3.725; =48200﹣112320÷39,
=48200﹣2880,
(370) ÷ + × , (376)1 ÷3.6× ,
=45320;
(384)(3.06÷0.25+2.76)×0.2,
= × + × , =1 × × ,
=(12.24+2.76)×0.2,
=15×0.2,
=( + )× , = ;
=3;
=1× , (377)15 ×7+3 ÷ , (385)[3 ÷(3﹣2.4×
)]×0.2,
= ; =15 ×7+3 ×7,
=[3 ÷(3﹣ )]×0.2,
(371) ÷[ ﹣( ﹣ )], =(15 +3 )×7,
=[3 ÷ ]×0.2,
=19×7,
= ÷[ ﹣ + ],
=133;
= × ,
分数混合运算---- 41= = ; = ,
(386) + ﹣ , (395) + + + , = .
= + ﹣ , =( + )+( + ), (402) ÷ ÷ ,
=1+1,
= ; = ×15,
=2
=8;
(387)25× × = ; (396) × ÷ × ,
(403)( + )× ,
(388) × × = ; =( )×( ),
=( )× ,
(389) ÷6÷ =1× ,
= × ,
= × ×15, =1 ;
= ;
= ; (397) ×13﹣ ,
(404)13.2÷(3.2×3﹣0.8),
=13.2÷(9.6﹣0.8),
(390) × ÷ , = ×(13﹣1),
=13.2÷8.8,
=1.5;
= × × , = 12,
(405) ÷[( ﹣ )×12],
=10;
= ;
(398) ÷〔 ×(1﹣ )〕, = ÷[ ×12],
(391)15÷ × ,
= ÷〔 × 〕, = ÷ ,
=15× × ,
= ÷ , = × ,
=
=2;
=
(392) ﹣ + , (399) ÷ + × ,
(406) ×45+ ÷ ,
= + , =( )× ,
= ×45+ ×45,
= ; =1× ,
=( + )×45,
(393) + ﹣ , = ;
=1×45,
=45;
= +( ﹣ ), (400) ﹣ ﹣ ,
(407) ﹣ × ,
= + , = ﹣( + ),
= ﹣ ,
= ; = 1,
= ;
(394) ﹣( + ), = ;
(408)( + )÷ ,
= ﹣ , (401) ﹣ ÷ ,
=( + )×56,
分数混合运算---- 42= ×56+ ×56, =1× , =1× ,
=21+16,
= ; = ;
=37
(409)( × + )÷(11﹣ ), (415) + × + , (421)5.58﹣ +5.42﹣
=( + )÷(11﹣ ), = + + , =(5.58+5.42)﹣( + ),
=11﹣1,
= ÷ , = + ,
=10;
= = ; (422)999 +99 +9 + .
(410) × × × , (416)( ﹣ )÷ , =1000+100+10+ ﹣ ﹣ ﹣ ,
=( × )×( × ), = , =1110+( ﹣ 3),
= , = =1110+( ﹣ ).
=1110+0,
= ; (417) ÷( ﹣ )
=1110
(411) × + × , = ÷ , (423) × ﹣ ÷ ,
= ×( + ), = ; = × ﹣ × ,
= ×1, (418) ×[ ﹣( ﹣ )] =( ﹣ )× ,
= ; = ×[ + ﹣ ], =2× ,
(412) ÷[( + )× ], = ×[1﹣ ], = ;
= ÷[ × ], = × , (424)1﹣ ÷ ﹣ ,
= ÷ , = ; =1﹣ ﹣ ,
=3;
(419) ÷[ ×( + )] =1﹣( + ),
(413)( + × )÷ ,
=1﹣1,
= ÷[ × ],
=0;
=( + )÷ ,
= ×15, (425) ÷ ﹣ ÷ ,
= × ,
=9 ; =( ﹣ )÷ ,
= .
(420) ÷ + × =1÷
(414) ÷ + × ,
= × + × , = ;
= × + × ,
=( + )× , (426)( + × )÷ ,
=( + )× ,
分数混合运算---- 43=( + )÷ , (428) ×( + )+ , =( )× ,
= ÷ , = × + + , = ;
= . = , (430)4 4,
(427) ÷ + × , = , =4× ﹣ ,
= × + , = ; =5﹣ ,
=( )× , (429) + , = .
= ; = ,
分数混合运算---- 44