用简便方法计算(急用~) (4.5-4.5x0.4)÷0.3

2024-11-08 11:34:03
推荐回答(5个)
回答1:


望掘棚岩判御和卖采纳

回答2:

(4.5-4.5×0.4)÷0.3
=4.5×(1-0.4)÷0.3
=4.5×0.6÷0.3
=4.5×(0.6÷0.3)
=4.5×2
=9

回答3:

回答4:

回答5:

0.6/0.3/4.5