Question

9.9x6.6+6.3x10.2简便计算？

Answer 1

9.9*6.6+6.3*10.2
=6.6*（10-0.1）+6.3*(10+0.2)
=66-0.66+63+1.26
=129+0.6
=129.6

Answer 2

9.9乘以6.6等于65.34
6.3乘以10.2等于64.26
65.34加64.26等于129.6

Answer 3

（9.9+10）x6.6
因为6.3X0.2等于6.6，所以可以提取6.6来作为公因数，留下一个9.9和10相加就可以了

Answer 4

你好，此题解答如下:
由题意可得:
9.9×6.6+6.3×10.2

=3×3×3×(1.1×2.2+0.7×3.4)

=27×(2.42+2.38)

=27×4.8

=129.6
希望能够帮助到你。

Answer 5

9.9×6.6+6.3×10.2
=（10-0.1）×6.6+6.3×（10+0.2）
=10×6.6-0.1×6.6+6.3×10+6.3×0.2
=66-0.66+63+1.26
=129+0.6
=129.6