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49.8X2.73+2.73X50.3+0.273等于?用简便运算
人气:425 ℃ 时间:2020-05-15 02:45:01
解答
=2.73×(49.8+50.3+ 0.1)=2.73×100.2=273.5462.73×100.2=2.73×100+2.73×0.2=273+0.546=273.546
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