怎样用简便方法计算490×0.35???

2025-01-26 18:02:44
推荐回答(5个)
回答1:

(500-10)×0.35=500×0.35-10×0.35

回答2:

(500-10)x0、35
=500x0.35-10x0.35
=175一3.5
=171.5

回答3:

=(500-1)x0.35=5x35-0.35

回答4:

回答5: