(5.2-4.5)×0.4÷3.5用简便方法怎么写

2024-11-01 08:23:46
推荐回答(1个)
回答(1):

(5.2-4.5)×0.4÷3.5
=0.7x0.4÷3.5
=7x0.04÷3.5
=7÷3.5x0.04
=2x0.04
=0.08

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