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数学
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0.29x23.7一2.9x1.37怎样简便运算
人气:248 ℃ 时间:2020-02-03 01:42:38
解答
0.29x23.7一2.9x1.37
=2.9x2.37-2.9x1.37
=2.9x(2.37-1.37)
=2.9x1
=2.9
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