来自盛宇的问题
计算下面各题,并且验算:41.2-15.621.56+6.74.
计算下面各题,并且验算:
41.2-15.6
21.56+6.74.
1回答
2020-05-06 12:53
计算下面各题,并且验算:41.2-15.621.56+6.74.
计算下面各题,并且验算:
41.2-15.6
21.56+6.74.
41.2-15.6=25.6; 41.2−15.6 25.6;验算: 15.6+25.6 41.2;21.56+6.74=28.3; 21.56+6.7428.30;验算: 6.74+21.56 28.30.