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人教版六年级上册数学分数乘法的简便计算练习题
1、直接写得数。
1125733 ×0= × = ×12= × = 45× = 3456121459×
72941411
= × = ×100= 18× = × = 18310256114
131121383 ×5= 7×1 = - = + = 0× = 51012965132、计算下面各题,能简算的要简算.
2143232184
× ×3 5× × × 4 × ( + )× 5 ( + )×27 357554205927273361255516 ×( × ) ( - )× ×(7 - ) × + ×
183088156369962353676275
× + × × - × ×6 - × 6 942741351351212
33633132
21× 37× × 24 ( + 7 )× 25 × + ×
2035255424554552116412
- × 1- × + × ×(5 - ) 79714252466312×(
753413
+ + ) ×(125 × 34) ( + )×7 ×5 24641757
1919816
× 199 × (24 + )× × 78 202032477
2291
× + ×0.4-2÷5× 5101010
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