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1.25×68.275+125×3.7826+1250×0.053465的简便运算
人气:270 ℃ 时间:2020-04-18 13:26:31
解答
1.25×68.275+125×3.7826+1250×0.053465
=125×(0.68275+3.7826+0.53465)
=125×5
=625
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