Question

38.5-5.38+61.5-4.62的简便运算？

有几种简便算法

Answer 1

38.5−5.38+61.5−4.62
=38.5+61.5−(5.38+4.62)
=100−10
=90
所以以上就是38.5−5.38+61.5−4.62的简便运算方法。望采纳。