7.2ᠧ2.5的简便运算?

2024-11-25 15:20:07
推荐回答(3个)
回答1:

简便运算过程如下:
7.2×2.5
=7.2×(2+0.5)
=7.2×2+7.2×0.5
=14.4+3.6
=18

回答2:

7✘2.5+0.2×2.5
=17.5+0.5
=18

回答3:

7.2/0.4=18