a+b |
1-ab |
1 |
2 |
1 |
5 |
1 |
8 |
a+b |
1-ab |
1 |
2 |
1 |
5 |
1 |
8 |
| ||||
1-
|
1 |
8 |
7 |
9 |
1 |
8 |
| ||||
1-
|
5 |
8 |
1 |
8 |
1 |
4 |
1 |
4 |
1 |
9 |
1 |
12 |
2 |
3 |
2 |
3 |
2 |
3 |
1 |
2 |
5 |
7 |
5 |
8 |
1 |
4 |
1-x |
3 |
x+2 |
6 |
0.2x+1 |
0.3 |
0.02x+0.1 |
0.07 |
A.-
| B.-7-2×5=-9×5=-45 | ||||||||
C.3÷
| D.-5÷
|
1 |
2 |
1 |
3 |
1 |
6 |
1 |
2 |
1 |
2 |
A.1题 | B.2题 | C.3题 | D.4题 |
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