Question

4.7x0.3+0.47x4.2+0.0047x28的简便运算过程

Answer 1

4.7x0.3+0.47x4.2+0.0047x28=4.7×0.3+4.7×0.42+0.47×0.28
=4.7×（0.3+0.42+0.28）
=4.7×1
=4.7

以上是我的答案，希望可以帮到你，希望采纳！！！谢谢