0.75╳50╳0.4简便运算

2024-11-29 23:39:32
推荐回答(3个)
回答1:

0.75╳50╳0.4
=0.75╳(50╳0.4)
=0.75x20
=15

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回答2:

0.75x50x0.4
=0.75x(50x0.4)
=0.75x20
=15

回答3:

0.75×50×0.4
=0.75×(50×0.4)
=0.75×20
=15