| 1. | 10 + 10 = |
15
|
16
|
11
|
20
|
| 2. | 7 + 4 = |
10
|
11
|
17
|
12
|
| 3. | 4 + 3 = |
7
|
4
|
8
|
5
|
| 4. | 5 + 1 = |
6
|
7
|
4
|
8
|
| 5. | 10 + 2 = |
15
|
16
|
12
|
20
|
| 6. | 10 + 7 = |
20
|
12
|
17
|
15
|
| 7. | 9 + 9 = |
14
|
13
|
18
|
17
|
| 8. | 9 + 9 = |
16
|
18
|
17
|
20
|
| 9. | 3 + 2 = |
10
|
9
|
6
|
5
|
| 10. | 6 + 2 = |
4
|
1
|
8
|
2
|
| 11. | 3 + 2 = |
10
|
6
|
5
|
9
|
| 12. | 10 + 4 = |
14
|
12
|
20
|
13
|
| 1. | 10 + 10 = |
15
|
16
|
11
|
20
|
| 2. | 7 + 4 = |
10
|
11
|
17
|
12
|
| 3. | 4 + 3 = |
7
|
4
|
8
|
5
|
| 4. | 5 + 1 = |
6
|
7
|
4
|
8
|
| 5. | 10 + 2 = |
15
|
16
|
12
|
20
|
| 6. | 10 + 7 = |
20
|
12
|
17
|
15
|
| 7. | 9 + 9 = |
14
|
13
|
18
|
17
|
| 8. | 9 + 9 = |
16
|
18
|
17
|
20
|
| 9. | 3 + 2 = |
10
|
9
|
6
|
5
|
| 10. | 6 + 2 = |
4
|
1
|
8
|
2
|
| 11. | 3 + 2 = |
10
|
6
|
5
|
9
|
| 12. | 10 + 4 = |
14
|
12
|
20
|
13
|