问题
解答题
用竖式计算下面各题,并用竖式验算.
①13.42+5.38=
②5.3-0.74=
答案
①13.42+5.38=18.8,
13.42
+5.38 |
18.80 |
验算:
5.38
+13.42 |
18.80 |
②5.3-0.74=4.56;
5.3
-0.74 |
4.56 |
验算:
4.56
+0.74 |
5.30 |
用竖式计算下面各题,并用竖式验算.
①13.42+5.38=
②5.3-0.74=
①13.42+5.38=18.8,
13.42
+5.38 |
18.80 |
验算:
5.38
+13.42 |
18.80 |
②5.3-0.74=4.56;
5.3
-0.74 |
4.56 |
验算:
4.56
+0.74 |
5.30 |