Question

2.22×9.9+6.66×6.7，简便运算？

Answer 1

根据题意，这道题用到的简便计算方法是乘法分配律和乘法结合律，计算方法如下：原式=2.22*3*3.3+6.66*6.7=6.66*（3.3+6.7）=6.66*10=66.6。

Answer 2

解:2.22×9.9+6.66×6.7=2.22×9.9+2.22×3×6.7=

2.22×9.9+2.22×20.1=2.22×(9.9+20.1)=2.22×30=

66.6，希望可以帮到你

Answer 3

这道题可以把9.9分解成3.3*3。7然后利用乘法结合律来简便运算：
2.22*9.9+6.66*6.7
=2.22*3*3.3+6.6*6.7
=6.66*3.3+6.66*6.7
=6.66*（3.3+6.7）
=6.66*10
=66.6

Answer 4

2.22×9.9+6.66×6.7
=2.22x3x3.3+6.66x6.7
=6.66x3.3+6.66x6.7
=6.66x(3.3+6.7)
=6.66x10
=66.6

Answer 5

根据题意，简便运算如下：
2.22*9.9+6.66*6.7
=2.22*3*3.3+6.66*6.7
=6.66*3.3+6.66*6.7
=6.66*(3.3+6.7)
=6.66*10
=66.6