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数学
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求一道数学简算题
2.5*4.6+0.25*46
人气:310 ℃ 时间:2020-06-06 21:53:17
解答
2.5*4.6+0.25*46
=2.5×4.6+(0.25×10)×(46÷10)
=2.5×4.6+2.5×4.6
=2.5×(4.6+4.6)
=2.5×9.2
=23
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