5.79乘以37加5.79乘以28加5.79乘以35的简便方法

问题描述:

5.79乘以37加5.79乘以28加5.79乘以35的简便方法

5.79*37+5.79*28+5.79*35
=5.79*(37+28+35)
=5.79*100
=579