(完整版)分数乘除法简便运算100题(有答案).doc
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分数乘除法简便运算 100 题(有答案)
( 1)(8 4 )×
3 ×
9 ( )(3 3 )× 6
9 +27 2 8 - 8 15
( 3) 1 2 5 5 5 1
6 ×( 7 - 3 ) (4) 6 × 9 + 9 × 6
( 5) 2 ×3 5 × 3 ( ) 6 ×7 6 × 2
9 4 +27 4 6 13 5 - 13 5
7 5 3 3 4 3 3
( 7) 12 × 6 - 12 × 6 (8)8 + 8 × 7 + 8 ×7
( 9) 37× 3 ( 10 ) 6 × 24 35 25
15 3 10 3 3 7 7
( 11)21 × 4 + 21 ×4 - 4 (12)10 ×101- 10
8 8 8 8 3 3
( 13) 9 ×9 — 9 ×9 (14) 5 × 99 + 5
4 8 4
( 15)( 7 + 9 ) ×7 ×9 (16) 35 × 25
34 5 5 18
( 17) 36 × 35 ( 18) ( 6 - 9 ) × 5
2 1 2 5
( 19)263 × 5 (20)325 ×6
1 1 1 35 5
( 21) 10 5
2 5 ( 22) 7
3 7 4 7 7 1 2 1
(23) 7 8 7 8 ( 24) 9 9 9 9
( 25) 3 20 5 ( 26) 5 5 4 5
5 6 9 12 9 12
3 3 4 3 3 37
( 27) 8 - 8 ×7 - 8 ×7 (28) 63 62
( 29) 1 ÷ 6 + 2 ÷ 6 ( ) 2 ×(15 × 29 )
3 7 3 7 30 29 31
5 2 8 3
( 31) 8 ×3 × 15 (32) 254 ×4
8 5 11 7 5 1
(34) 12 18 24 72 ( 33)54×( - )
9 6
( 35) 3 5 0.375 2 6 3 8 5 19 4 21 19
8 11 11 3 (36) 7 25 25
5 3 1 11 5 3 13 1
(37) 6 8 48 (38) 12 6 4 24 24
7 11 2 5 265 4 3 4
9 5 9 11 3 578 157
(39) (40) 4 3
3 8 3 8 5 5 5 1 1 1
7 9 12 7 9 12 (41) 8 8 (42)
33 5 3 44 24 5 0.6
(43) 3 5 3
1 1 × (45) × 4
6.8 × +
(44) 3.2 101
5 5 25
(46) 5 + 5 ×15 (47)8 8 ÷8
8 8 15
(48) 1 ×6 + 2 ×6 (49 )( 90 + 1 )× 1
3 7 3 7 88 89
( 50) 5 × 3 + 5 × 5
78 8 7
( 51) 8 × 5 + 5 ÷ 10 ( 52) 18×( 4 + 5 )
15 16 27 9 9 6
( 53) 2 × 7+ 2 × 5 ( 54)( 1 - 1 )×( 24- 4 )
3 3 6 12 5
( 55)( 5 × 4 + 4 )÷ 4 ( 56) 1 ÷ [ ( 2 + 1 )× 1 ]
7 7 7 7 5 3 5 13
( 57) 3 3 × 7 + 4 × 3 3 (58) 333 1 × 3
8 11 11 8 3
( 59) 5 7 5 9 ( 60) 2 5 2 5
9 12 12 5 3 4 5 6
( 61)(32 × 1 +17) ÷ 5 ( 62)(25+ 3 )÷ 1 + 1
4 12 4 4 4
( 63) 18 × 9 + 7 × 9 + 9
25 16 25 16 16
63 ( 5 4 3 ) ( 65) [ 5 ( 1 1 ) 3] 16
( 64)9 21 7 8 2 3 4 23
( 66)( 21× 3 + 4 ×21)× 1 ( 67)( 99+ 9 )÷ 9
7 7 4 10
(68) 14 ÷[ ( 4 + 2 )× 10 ] (69)( 5 + 4 )× 30
15 5 3 11 6 5
5 6 - 9 9 1 ×58+ 1 1
(70) 6 × ÷ (71) ×41+
5 10 5 8 8 8
4 4 × 5 - 1 4 5 + 2 ÷ 3 (72) ×
4 2 (73) ×
5 5 5 7 5 6
(74) 4
÷[( 5 - 1 )÷ 5
] 3
× 153 –0.6× 53 5 8 2 8 (75) 5
4 1 7 7 1 1 3 10
(76)( 5 + 4 )÷ 3 +10 (77)8 × [2 ÷ (5 × 9 )]
2 3 37 14 (78) ( + ) × 15× 11(79)
15 11 39
44 (81) 2006 (80) 46× 2008 ×
45 2007
4 15 7 9 13 9 4
(82) 7 ×22 × 12 (83) 10 ×17 +10 × 17
9 11 11 13
( 84)36×37 ( 85)13 - 13 ×33
( 86) 7 ×101- 7 ( 87) 4 5 3 5
25 25 7 9 7 9
( 88) 5 3 5 1
(89)17× 9
9 × 4 +9 × 4 16
( 91) 44 × 37
45
(93)73 1 × 1
15 8
(94) 166 1 ÷ 41
20
1 × 39 + 3 × 25 +
(95) 4 4
(96)1 4 ×( 2 2 - 3 ) + 15
17 3 4
(97)2000 ÷ 2000 2000
2001
1993 1994 1
(98) 1993 1992 1994
( 92) 2004 × 67 2003
26 × 3
4 13
1 ÷ 17
1221
(99)3 3 × 25 2 + 37.9 × 6 2
5 5 5
(100) ( 9 2 +7 2 )÷( 5 + 5 )
7 9 7 9
分数乘除法简便运算 100 题答案
8 4 3 3 6
( 1)(9 +27 )× 3 × 9 =31 (2)(8 - 8 )× 15 =0
( 3) 1 2 19
(4) 5 5 5 1 5
6 ×( 7 - 3 )=18 6 × 9 + 9 × 6 = 9
( 5) 2 3 5 3 11 6 7 6 2 6
9 ×4 +27 × 4 = 36 (6) 13 × 5 - 13 × 5 = 13
( 7) 7 × 5 ×
6 =1 ( ) 3 + 3 × 4 + 3 × 3 = 3
12 6 - 12 8 8 8 7 8 7 4
( 9) 37× 3 6 6
35 = 3 35 (10) 25 × 24
= 6 × (25-1 ) 25
19 =5 25
( 12)15 × 3 + 10 ×3 - 3 = 1 (12) 7 × 101- 7 =70
21 4 21 4 4 7 10 10
8 8 8 8 3 3
( 14) 9 ×9 — 9 ×9 =0 ( 14) 5 × 99 + 5 =60
4 8 4
( 16)( 7 + 9 ) ×7 ×9=92 ( 16)35 ×25=95
34 5 5 18
( 17) 36 × 35 ( 18) ( 6 - 9 ) × 5 =1
34
= (35+1)× 35
= 34
34
35
2 1 2 5
( 19)263 × 5 (20)325 ×6
= (25+5 1 = (30+12 5 )× )×
3 5 5 6