2 |
3 |
3 |
4 |
2 |
3 |
7 |
9 |
2 |
3 |
1 |
5 |
1 |
3 |
4 |
3 |
1 |
2 |
1 |
3 |
2 |
3 |
3 |
4 |
2 |
3 |
2 |
3 |
2 |
3 |
7 |
9 |
2 |
3 |
1 |
5 |
1 |
3 |
7 |
9 |
7 |
15 |
1 |
3 |
5 |
3 |
16 |
3 |
2 |
3 |
4 |
3 |
1 |
2 |
1 |
3 |
4 |
3 |
1 |
6 |
5 |
6 |
19 |
6 |
. |
| . |
. |
| . |
. |
| . |
. |
| . |
. |
| . |
. |
|
| . |
A.-2+(-1)=-3 | B.-2-(-1)=-3 | C.-2×(-1)=-2 | D.-2÷(-1)=-2 |
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