Question

5.24x35.7+47.6x3.57的简便计算？

5.24x35.7+47.6x3.57 ＝

Answer 1

这道题能够应用乘法分配率进行简算，但是，需要变形，把47.6×3.57或者前一个乘法变形，一个扩大10倍，一个缩小10倍，即 47.6×3.57变成4.76×35.7这样整个算式变成
5.24×35.7+4.76×35.7
=( 5.24+4.76 )×35.7
=10×35.7
=357

Answer 2

关于算式5.24×35.7+47.6×3.57用简便的方法计算，详细操作如下：
5.24×35.7+47.6×3.57
=0.524×3.57+47.6×3.57
=(0.524+47.6)×3.57
=48.124×3.57
=170.456

Answer 3

5.24x35.7+47.6x3.57
=(5.24x10)x(35.7/10)+47.6x3.57
=52.4x3.57+47.6x3.57
=(52.4+47.6)x3.57
=100x3.57
=357