5.4x4.6+3.4x4.6+4.6简便方法怎样简便?

bao13shan2022-10-04 11:39:541条回答

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我家的大白菜共回答了14个问题 | 采纳率92.9%: 5.4x4.6+3.4x4.6+4.6
=4.6×(5.4+3.4+1)
=4.6×9.8
=4.6×(10-0.2)
=4.6×10-4.6×0.2
=46-0.98
=45.02; 1年前

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