题目是这样的:

问题描述:

题目是这样的:
你发现了什么?你能用发现的规律计算下面各题吗?
72*12 90*15 80*16
= = =
= = =
= = =
题目是这样的:
你发现了什么?你能用发现的规律计算下面各题吗?
72÷12 90÷15 80÷16
= = =
= = =
= = =

72/12
=(12*6)/12
=12*6/12
=6
90/15
=15*6/15
=6
80/16
=16*5/16
=5