5.3X3·9+0·53X39简便计算
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5.3X3.9+0.53X39=0.53X39+0.53X39=0.53X39X2=1.06X39= 1x39+0.06X40-0.06x1=39+2.4-0.06=41.34
咨询记录 · 回答于2022-06-29
5.3X3·9+0·53X39简便计算
老师可以快点吗
5.3X3.9+0.53X39=0.53X39+0.53X39=0.53X39X2=1.06X39= 1x39+0.06X40-0.06x1=39+2.4-0.06=41.34
需要多久啊
答案已经给出了哦