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3.72乘2.8减3.72减8乘0.372等于多少,脱式计算
人气:292 ℃ 时间:2020-04-24 13:43:07
解答
3.72x2.8-3.72-8x0.372
=3.72x2.8-3.72-(10-2)x0.372
=3.72x(2.8-1-1)+2x0.372
=3.72x0.8+0.2x3.72
=3.72(0.8+0.2)
=3.72
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