0.625×5点3 5点7×0.625-0点625用简便方法计算

2025-04-08 00:43:42
推荐回答(1个)
回答1:

原式
=0.625x5.3+5.7x0.625-0.625
=0.625x(5.3+5.7-1)
=0.625x(11-1)
=0.625x10
=6.25