6.3乘18+0.63乘820 简便运算?

2025-04-29 04:27:09
推荐回答(1个)
回答1:

利用了乘法分配率的逆运算
6.3×18+0.63×820
=6.3×18+6.3×82
=6.3×(18+82)
=6.3×100
=630