| 1. | 10 + 9 = |
20
|
15
|
19
|
17
|
| 2. | 5 + 4 = |
1
|
5
|
9
|
8
|
| 3. | 10 + 10 = |
13
|
20
|
17
|
15
|
| 4. | 4 + 3 = |
7
|
5
|
3
|
2
|
| 5. | 5 + 5 = |
10
|
7
|
6
|
9
|
| 6. | 8 + 4 = |
12
|
16
|
17
|
10
|
| 7. | 14 + 8 = |
22
|
47
|
31
|
32
|
| 8. | 5 + 1 = |
9
|
6
|
8
|
1
|
| 9. | 5 + 5 = |
2
|
4
|
10
|
6
|
| 10. | 13 + 9 = |
39
|
34
|
20
|
22
|
| 11. | 13 + 7 = |
12
|
17
|
20
|
14
|
| 12. | 15 + 4 = |
12
|
11
|
13
|
19
|
| 1. | 10 + 9 = |
20
|
15
|
19
|
17
|
| 2. | 5 + 4 = |
1
|
5
|
9
|
8
|
| 3. | 10 + 10 = |
13
|
20
|
17
|
15
|
| 4. | 4 + 3 = |
7
|
5
|
3
|
2
|
| 5. | 5 + 5 = |
10
|
7
|
6
|
9
|
| 6. | 8 + 4 = |
12
|
16
|
17
|
10
|
| 7. | 14 + 8 = |
22
|
47
|
31
|
32
|
| 8. | 5 + 1 = |
9
|
6
|
8
|
1
|
| 9. | 5 + 5 = |
2
|
4
|
10
|
6
|
| 10. | 13 + 9 = |
39
|
34
|
20
|
22
|
| 11. | 13 + 7 = |
12
|
17
|
20
|
14
|
| 12. | 15 + 4 = |
12
|
11
|
13
|
19
|