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4.35×7.6+43.5×0.24 用简便算法计算
人气:150 ℃ 时间:2019-12-26 06:06:44
解答
4.35×7.6+43.5×0.24
=4.35×7.6+4.35×10×0.24
=4.35×7.6+4.35+2.4
=4.35×(7.6+2.4)
=4.35×10
=43.5
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