36×22+19×22+66×15，用简便方法计算？

Question

如题所述

Answer 1

＝36×22+19×22+22×45
＝（36+19+45）×22
＝100×22
=2200
用乘法分配律的逆运算比较简便。

Answer 2

66等于22乘3,因此原式可以将22取出，余下乘数想加
原式=36*22+19*22+22*3*15
=22*(36+19+45)
=22*100
=2200

Answer 3

36×22+19×22+66×15
=36×22+19×22+22×3×15
=22×(36+19+45)
=22×100
=2200