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数学
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7.3乘101减7.3用简便方法计算
人气:338 ℃ 时间:2019-10-06 22:27:16
解答
7.3 ×101 - 7.3
= 7.3 ×101 - 7.3 ×1
= 7.3 ×(101 -1)
= 7.3 × 100
= 730
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