题目内容
列竖式计算
| 450×20= | 248×18= | 40×205= | 307×23= | 560×12= | 324×25= |
450×20=9000;
248×18=4464;
40×205=8200;
307×23=7061;
560×12=6720;
324×25=8100.
|
| . |
| 9 0 0 0 |
248×18=4464;
|
| . |
| 1 9 8 4 |
| 2 4 8 |
| 4 4 6 4 |
40×205=8200;
|
| . |
| 8 2 0 0 |
307×23=7061;
|
| . |
| 9 2 1 |
| 6 1 4 |
| 7 0 6 1 |
560×12=6720;
|
| . |
| 1 1 2 |
| 5 6 |
| 6 7 2 0 |
324×25=8100.
|
| . |
| 1 6 2 0 |
| 6 4 8 |
| 8 1 0 0 |
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