Question

23.6*2.6+2.36*42+0.32*236的简便计算？

Answer 1

23.6×2.6+2.36×42+0.32×236=23.6×2.6+23.6×0.1×42+0.32×（23.6×10）=23.6×（2.6+0.1×42+0.32×10）=23.6×（2.6+4.2+3.2）=23.6×10=236。此题关键是通过提取公因式23.6或2.36、236来简化运算。

Answer 2

23.6x2.6+23.6x0.1x42+0.32x10x23.6=23.6x2.6+23.6x4.2+23.6x3.2=23.6x（2.6+4.2+3.2）=23.6x10=236，提取以及合并公因数可以不用计算器进行简便计算。

Answer 3

可以提取公因式23.6，这样2.36x42会变成23.6x4.2,0.32x236变成3.2x23.6，提取公因式以后：23.6x（2.6+4.2+3.2）=23.6x10=236。

Answer 4

23.6*2.6+2.36*42+0.32*236
=23.6*2.6+23.6*4.2+3.2*23.6
=23.6*(2.6+4.2+3.2)
=23.6*10=236