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数学
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3.45×3.6+0.345×64(用简便方法计算)
人气:300 ℃ 时间:2019-12-11 02:41:33
解答
3.45×3.6+0.345×64
=0.345x10x3.6+0.345×64
=0.345×(36+64)
=0.345x100
=34.5
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