题目内容
①347×216
②4090×430
③51340÷260
④214461÷423.
②4090×430
③51340÷260
④214461÷423.
分析:根据题意,由整数的乘除法计算法则列竖式解答即可.
解答:解:①347×216=74952;
3 4 7
×2 1 6
----------------
2 0 8 2
3 4 7
6 9 4
----------------
7 4 9 5 2
②4090×430=1758700;
4 0 9 0
×4 3 0
----------------
1 2 2 7
1 6 3 6
----------------
1 7 5 8 7 0 0
③51340÷260=197…120;
1 9 7
260
2 6 0
-----------------
2 5 3 4
2 3 4 0
------------------
1 9 4 0
1 8 2 0
------------------
1 2 0
④214461÷423=507;
5 0 7
423
2 1 1 5
--------------------
2 9 6 1
2 9 6 1
--------------------
0
3 4 7
×2 1 6
----------------
2 0 8 2
3 4 7
6 9 4
----------------
7 4 9 5 2
②4090×430=1758700;
4 0 9 0
×4 3 0
----------------
1 2 2 7
1 6 3 6
----------------
1 7 5 8 7 0 0
③51340÷260=197…120;
1 9 7
260
| 5 1 3 4 0 |
2 6 0
-----------------
2 5 3 4
2 3 4 0
------------------
1 9 4 0
1 8 2 0
------------------
1 2 0
④214461÷423=507;
5 0 7
423
| 2 1 4 4 6 1 |
2 1 1 5
--------------------
2 9 6 1
2 9 6 1
--------------------
0
点评:本题主要考查整数的乘除法,注意乘除法的区别,与计算方法.
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