Question

3.75×2.5+6点25÷0.4怎么简便？

Answer 1

先观察式子，可以发现6.25÷0.4=6.25×2.5。那么就把式子变成3.75×2.5+6.25×2.5，然后进行提取计算。

Answer 2

先根据除以一个数等于乘以这个数的倒数将除法变成乘法，再根据乘法结合律计算即可。
具体做法：
3.75×2.5+6.25÷0.4
=3.75×2.5+6.25÷2/5
=3.75×2.5+6.25×5/2
=3.75×2.5+6.25×2.5
=2.5×(3.75+6.25)
=2.5×10
=25
希望对你有所帮助！

Answer 3

3.75×2.5+6.25÷0.4
=（3.75+6.25）×2.5
=10×2.5
=25
你好，本题已解答
如满意，请点采纳

Answer 4

3.75×2.5+6.25÷0.4
=3.75×2.5+6.25×2.5
=（3.75+6.25）×2.5
=25

Answer 5

原式＝3.75×2.5+6.25÷4/10
＝3.75×2.5+6.25×10/4
＝3.75×2.5+6.25×2.5
＝（3.75+6.25）×2.5
＝10×2.5
＝25