题目内容
用竖式计算并验算.
| 5.4+0.54 | 0.73-0.49 | 0.31×2.4 | 0.036÷0.24. |
①5.4+0.54=5.94;
5.4
+0.54
----
5.94
验算:
5.94
-0.54
-------
5.40
②0.73-0.49=0.24;
0.73
-0.49
-------
0.24
验算:
0.49
+0.24
-------
0.73
③0.31×2.4=0.744;
0.31
×2.4
--------
124
62
--------
0.744
验算:
2.4
310
620
------------
1240
1240
-----------
0
④0.036÷0.24=0.15.
0.15
240
240
------
1200
1200
------------
0
验算:
0.15
×0.24
---------
60
30
-------
0.0360
5.4
+0.54
----
5.94
验算:
5.94
-0.54
-------
5.40
②0.73-0.49=0.24;
0.73
-0.49
-------
0.24
验算:
0.49
+0.24
-------
0.73
③0.31×2.4=0.744;
0.31
×2.4
--------
124
62
--------
0.744
验算:
2.4
310
| 744 |
620
------------
1240
1240
-----------
0
④0.036÷0.24=0.15.
0.15
240
| 36 |
240
------
1200
1200
------------
0
验算:
0.15
×0.24
---------
60
30
-------
0.0360
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