4.2×30.2简便计算脱式计算
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4.2×30.2=4.2x(30+0.2)=4.2x30+4.2x0.2=126+0.84=126.84
咨询记录 · 回答于2023-03-04
4.2×30.2简便计算脱式计算
4.2×30.2=4.2x(30+0.2)=4.2x30+4.2x0.2=126+0.84=126.84
您好,4.2×30.2=4.2x(30+0.2)=4.2x30+4.2x0.2=126+0.84=126.84
4.2×30.2简便计算脱式计算4.2×30.2=4.2x(30+0.2)=4.2x30+4.2x0.2=126+0.84=126.84