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计算下面各题.并验算(数的运算) 235+397 72.4-4.46 8.5×1.6 3.6÷0.75
235+39772.4-4.46 8.5×1.6 3.6÷0.75
人气:262 ℃ 时间:2020-06-18 09:33:40
解答
235+397 =63272.4-4.46=67.94 8.5×1.6 =13.6 3.6÷0.75=4.8
验算:632 -235= 397 72.4-67.94= 4.46 13.6÷1.6=8.5 4.8×0.75=3.6
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