Question

0.8✖️13✖️0.2✖️13怎么简便？

Answer 1

您好，解答如下:

0.8×13+0.2×13
=(0.8+0.2)×13
=1×13
=13

您好，解答完毕
如满意，请点采纳

Answer 2

回答：
0.8×13×0.2×13
=0.8×0.2×169
=0.8×0.2×（170-1）
=0.8×（34-0.2）
=0.8×33.8
=（1-0.2）×33.8
=33.8-6.76
=27.04
运用了乘法分配律

Answer 3

解:根据题意，运用乘法分配率，计算过程
0.8ⅹ13ⅹ0.2ⅹ13
=(1-0.2)ⅹ13ⅹ(0.2x13)
=(13-2.6)x2.6
=10.4ⅹ(3-0.4)
=31.2-4.16
=27.04。

Answer 4

0.8×13×0.2×13
=10.4×（0.2×13）
=10.4×2.6
=（10+0.4）×2.6
=10×2.6+0.4×2.6
=26+1.04
=27.04

Answer 5

0.8✖️13✖️0.2✖️13怎么简便？
0.8✖️13✖️0.2✖️13
=10.4x2.6
=(10+0.4)x2.6
=26+1.04
=27.04