(48.4+2.78+51.6-0.78)×3.7怎么简便运算?

2025-05-20 04:08:48
推荐回答(1个)
回答(1):

(48.4+2.78+51.6-0.78)*3.7
=((48.4+51.6)+(2.78-0.78))*3.7
=(100+2)*3.7
=3.7*100+3.7*2
=370+7.4
=377.4