Question

3又五分之三×25又五分之二+37.9×6又五分之二

要求用简便算法

Answer 1

解：原式=3.6X25.4+37.9x6.4
=3.6X25.4+(25.4+12.5)X6.4
=(3.6+6.4)X25.4+12.5X6.4
=254+80
=334 希望能帮到你O(∩_∩)O哈哈~如有疑问欢迎追问。如果满意谢谢采纳。

Answer 2

3又3/5乘25又2/5+37.9乘6又2/5
=18/5×127/5+37.9×32/5
=91.44+242.56
=334