101×2十六点9-1点二五×2十六点9×0点八用简便方法计算

2025-04-13 20:39:59
推荐回答(1个)
回答1:

101×26.9-1.25×26.9×0.8
=101×26.9-(1.25×0.8)×26.9
=101×26.9-1×26.9
=(101-1)×26.9
=100×26.9
=2690