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2.98 0.56 并且验算

2.98+0.56 =3.54验算3.54-2.98=0.56

2.98加0.56=3-0.02+0.56=3+0.56-0.02=3.56-0.02=3.54

2.98+0.56=3.54验算:1435÷35=41验算:

你好:2.98+0.56=3.54竖式计算如下:

12.53+4.67=17.2 验算.17.2-4.67=12.53

①11.65-7.39=3.72验算:②41.2-15.6=25.6验算:

12.53+4.67,计算下面各题,并且验算 解析12.53+4.67=17.2 验算17.2-4.67=12.53 或4.67+12.53=17.2

41.2-15.6=25.6; 41.215.6 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.

38.6+7.85=46.45验算:46.45-38.6=7.85

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