0.87×1.2+8.7×0.88怎么简便运算?

2025-04-02 19:17:44
推荐回答(4个)
回答1:

0.87×1.2+8.7×0.88
=8.7×0.12+8.7×0.88
=8.7×(0.12+0.88)
=8.7×1.0
=8.7

回答2:

0.87×1.2+8.7×0.88
=0.87×1.2+0.87×8.8
=0.87×(1.2+8.8)
=0.87×10
=8.7

回答3:

简便计算
0.87×1.2+8.7×0.88
=0.87x1.2+0.87x8.8
=0.87x(1.2+8.8)
=0.87x10
=8.7

回答4:

0.87×1.2+8.7×0.88=
0.87×1.2+(0.87x10)×0.88=
0.87×1.2+0.87x(10×0.88)=
0.87×1.2+0.87x8.8=
0.87x(1.2+8.8)=0.87x10=8.7