4.38-1.56+0.62-0.44用简便算法计栓
问题描述:
4.38-1.56+0.62-0.44用简便算法计栓
答
4.38-1.56+0.62-0.44=(4.38+0.62)-(1.56+0.44)=5-2=3
4.38-1.56+0.62-0.44用简便算法计栓
4.38-1.56+0.62-0.44=(4.38+0.62)-(1.56+0.44)=5-2=3