5.6乘69.32+138.64乘0.05+693.2乘0.43怎么简算_数学解答

5.6乘69.32+138.64乘0.05+693.2乘0.43怎么简算

人气：257 ℃　时间：2020-03-20 20:16:47

解答

这么简单的题都不会做
我来教你：
5.6X69.32+138.64X0.05+693.2X0.43
=5.6X69.32+69.32X2X0.05+69.32X10X0.43
=5.6X69.32+69.32X0.1+69.32X4.3
=69.32X(5.6+0.1+4.3)
=69.32X10
=693.2