Question

6.3×4.2+6.3×0.58怎么简便计算?

Answer 1

方法如下，
请作参考：

Answer 2

因为0.63×4.2=6.3×0.42，所以原式等于6.3×0.42+6.3×0.58运用乘法分配律逆运算就是6.3×（0.42+0.58）=6.3

Answer 3

6.3×4.2+6.3×0.58＝6.3×（4.2+0.58）＝6.3×4.78＝30.114

Answer 4

6.3×4.2+6.3×0.58＝6.3×（4.2+0.58）＝6.3×4.78＝30.114

Answer 5

这道题目可以用分配律和结合律来简便计算。先把共同的因数6.3提取出来，再乘以4.2和5.8的和10，就可以容易地得到结果：63。