52.6*9.2+ 4.3*2.8的简便运算

2024-11-29 22:15:42
推荐回答(2个)
回答1:

52.6*9.2+ 4.3*2.8
=52.6×(10-1+0.2)+4.3×(3-0.2)
=526-52.6+10.52+12.9-0.86
=549.42-53.46
=495.96

回答2:

我是在外面