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9.3剩以2.75加0.275乘以71怎样简便算法?
人气:366 ℃ 时间:2020-03-28 01:14:15
解答
9.3*2.75+0.275*71
=9.3*2.75+2.75*7.1
=2.75(9.3+7.1)
=2.75*16.4
=45.1
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