题目内容
| 456+782______, | 1025+6487______, | 1092-389______, | 278×3445______. |
456+782=1238;
1025+6487=7512;
1092-389=703
278×3445=957710.
24115
|
| . |
| 1 2 3 8 |
1025+6487=7512;
|
| . |
| 7 5 1 2 |
1092-389=703
|
| . |
| 7 0 3 |
278×3445=957710.
|
| . |
| 2 7 5 6 0 |
24115
| 6 8 9 0 |
| 9 5 7 7 1 0 |
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