Question

1.87×29.6−8.7×2.96的简便方法？

Answer 1

1.87×29.6−8.7×2.96的简便方法
逆用乘法分配律
1.87×29.6−8.7×2.96
=1.87×10×2.96−8.7×2.96
=18.7×2.96−8.7×2.96
=（18.7-8.7）×2.96
=10×2.96
=29.6

Answer 2

这道题可以通过构造公因数来简便计算，具体计算过程如下去：
1.87x29.6-8.7x2.96
=1.87x29.6-0.87x29.6
=29.6x（1.87-0.87）
=29.6x1
=29.6

Answer 3

1.87×29.6-8.7×2.96=1.87×29.6-0.87×29.6=1×29.6=29.6

Answer 4

1.2×8.9-7.9简便计算过程如下：1.2×8.9-7.9 =1.2×(7.9+1)-7.9 =1.2×7.9+1.2-7.9 =(1.2-1)×7.9+1.2 =0.2×7.9+1.2 =1.58+1.2 =2.78 所以1.2×8.9-7.9简便计算...

Answer 5

1.2×8.9-7.9简便计算过程如下：1.2×8.9-7.9 =1.2×(7.9+1)-7.9 =1.2×7.9+1.2-7.9 =(1.2-1)×7.9+1.2 =0.2×7.9+1.2 =1.58+1.2 =2.78 所以1.2×8.9-7.9简便计算...