57乘以3.7+63乘以5.7如何简算hyk
问题描述:
57乘以3.7+63乘以5.7如何简算
hyk
答
57乘以3.7+63乘以5.7
=57乘以3.7+6.3乘以57
=57(3.7+6.3)
=570