Question

0.666×0.8+0.222×0.6简便计算？

Answer 1

题解，一般遇见这样的算式，99%先考虑到用乘法分配律（反用）的方法。
0.666×0.8+0.222×0.6 （考虑分解到两个相同的数）
=0.666×0.8+0.222×0.2×0.3
=0.666×0.8+0.666×0.2 （乘法分配律的反用）
=0.666×（0.8+0.2）
=0.666×1
=0.666

Answer 2

0.666×0.8+0.222×0.6
=0.666×0.8+0.222×3×0.2
=0.666×0.8+0.666×0.2
=0.666×(0.8+0.2)
=0.666×1
=0.666

Answer 3

简便计算过程如下
0.666×0.8+0.222×0.6
=0.666×0.8+0.222×3×0.2
=0.666×0.8+0.666×0.2
=0.666×（0.8+0.2）
=0.666×1
=0.666
望采纳

Answer 4

0.666×0.8+0.222×0.6
=0.666×0.8+0.2×1.11×0.6
=0.666×0.8+0.2×0..666
=0.666×(0.8+0.2)
=0.666×1
=0.666

Answer 5

0.666x0.80+0.222x0.6
＝111x（0.6x0.8+0.2x0.6）
＝111x0.6x（0.8+0.2）
＝0.666x1
＝0.666