文档内容
分数乘除法简便运算 100 题(有答案)
(1)(+)×3 ×9 (2)(- )×
(3) ×(7 - ) (4) ×+ ×
(5)×+× (6) ×- ×
(7) ×6 - × 6 (8)+×+×
(9) 37× (10) × 24
(11)×+ ×- (12)×101-
(13) ×—× (14) × 99 +
(15)( + )×7 ×9 (16)3×25(17) 36× (18) ( - )×
(19)26× (20)32×
(21) (22)
(23) (24)
(25) (26)
(27)- ×- × (28)
(29) ÷ + ÷ (30)×(15×)
(31) ×× (32)25×4
(33)54×(- ) (34)(35)
(36)
(37) (38)
(39) (40)
(41) (42)
(43)
(44) 6.8× + ×3.2 (45) 101×(46) + ×15 (47)8 ÷8
(48) × + × (49)( 90+ )×
(50) × + ×
(51) × + ÷ (52)18×( + )
(53) ×7+ ×5 (54)( - )×(24- )
(55)( × + )÷ (56) ÷[( + )× ]
(57) × + × (58) ×3(59) (60)
(61)(32× +17)÷ (62)(25+ )÷ +
(63) × + × +
(65)
(64)
(66)(21× + ×21)× (67)(99+ )÷9(68) ÷[( + )× ] (69)( + )×30
× - ÷ (71) ×58+ ×41+
(70)
(72) × × - (73) × + ÷
(74) ÷[( - )÷ ] ×153 – 0.6×53
(75)
(76)(+)÷+ (77)×[÷(×)]
(78) (+)×15×11 (79)(80) 46× (81) 2008×
(82) ×× (83) ×+×
(84)36× (85)-×
(86) ×101- (87)
(88) × +× (89)17×
44 67
(91) ×37 (92)2004×
45 2003
1 1
(93)73 ×
15 8
1
(94) 166 ÷41
20
1 ×39 + 3 ×25 + 26 × 3
(95)4 4 4 134 2 3 1 17
(96)1 ×(2 - )+ 15 ÷
17 3 4 12 21
2000
(97)2000÷2000
2001
199319941
(98)199319921994
3 2 2
(99)3 ×25 + 37.9×6
5 5 5
2 2 5 5
(100)(9 +7 )÷( + )
7 9 7 9
分数乘除法简便运算100题答案
(1)(+)×3 ×9 =27.9 (2)(- )× =0
(3) ×(7 - )= (4) ×+ × =(5)×+× = (6) ×- × =
(7) ×6 - × 6 =1 (8)+×+×=
(9) 37× = 3 (10) × 24
= × (25-1)
=5
(12)×+ ×- = (12)×101- =70
(14) ×—×=0 (14) × 99 + =60
(16)( + )×7 ×9=92 (16)3×25=95
(17) 36× (18) ( - )×=1
=(35+1)×
= 34(19)26× (20)32×
=(25+ )× =(30+ )×
=5 =27
(21) = (22) =7
(23) = (24) =5
(25) =12 (26) =
(27)- ×- ×=0 (28) =37
(29) ÷ + ÷ = (30)×(15×) =(32) ××= (32)25×4= 103
(33)54×(- )=3 (34) =109
(36) =0 =19
(36)
=58 =7
(38) (38)
=750
(39) = (40)
=64 =5
(42) (42)=60
(43)
(45) 6.8× + ×3.2 =2 (45) 101× =16
=10
(46) + ×15 (47)8 ÷8=1
(48) × + × = (49)( 90+ )× = 1
(50) × + ×
=
(51) × + ÷ (52)18×( + )=23
=
(53) ×7+ ×5 =8 (54)( - )×(24- )=1(55)( × + )÷ (56) ÷[( + )× ]=3
=
(57) × + × = (58) ×3 =1000
(59) (60)
= =1
(62)(32× +17)÷ (62)(25+ )÷ +
=60 = 103
(63) × + × +
==20 (65)
(64) =0
(67)(21× + ×21)× = (67)(99+ )÷9 =11
(69) ÷[( + )× ] = (69)( + )×30 =49
× - ÷ = (71) ×58+ ×41+
=12.5
(70)(73) × × - (73) × + ÷ =
=
(74) ÷[( - )÷ ×153 – 0.6×53=60
】= 4
(75)
(76)(+)÷+= (77)×[÷(×)] =
=3
(78) (+)×15×11 =67 (79)
(80) 46× =44 (81) 2008×=2006
(82) ××= (83) ×+× =(84)36×= (85)-×=
(86) ×101- =28 (87) =
(88) × +× = (89)17× = 9
44 67
(91) ×37 (92)2004×
45 2003
1 67
=(1- )×37 = (2003+1)×
45 2003
1 67 67
= 1×37 - ×37 = 2003× + 1×
45 2003 2003
8 67
= 36 =67
45 2003
1 1
(93)73 ×
15 8
16 1
= (72 + )×
15 8
1 16 1
= 72 × + ×
8 15 8
2
= 9
15
1
(94) 166 ÷41
20
41 1
= (164 + )×
20 411 41 1
= 164× + ×
41 20 41
1
= 4
20
1 ×39 + 3 ×25 + 26 × 3
(95)4 4 4 13
3 3 3 26
= ×13 + ×25 + ×
4 4 4 13
3
= ×(13 + 25 + 2)
4
3
= ×40
4
= 30
4 2 3 1 17
(96)1 ×(2 - )+ 15 ÷
17 3 4 12 21
21 11 1 21
= ×1 + 15 ×
17 12 12 17
21 11 1
= ×(1 + 15 )
17 12 12
= 21
2000
(97)2000÷2000
2001
200020012000
= 2000÷
2001
2001
= 2000 ÷
20002002
2001
=
2002
199319941
(98)199319921994
(19921)19941
=
199319921994
199219941993
=
199319921994
= 13 2 2
(99)3 ×25 + 37.9×6
5 5 5
3 2 2 2
= 3 ×25 + (25 +12.5)×6
5 5 5 5
3 2 2 2 2
= 3 ×25 + 25 ×6 + 12.5×6
5 5 5 5 5
= (3.6+6.4)×25.4 + 12.5×8×0.8
= 254 + 80
= 334
2 2 5 5
(100)(9 +7 )÷( + )
7 9 7 9
65 65 5 5
= ( + )÷( + )
7 9 7 9
1 1 1 1
= [65×( + )]÷[5×( + )]
7 9 7 9
= 65÷5
= 13