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81 Cards in this Set

  • Front
  • Back
2 - 1 = ?
1

2 - 1 = 1
3 - 1 = ?
2

3 - 1 = 2
4 - 1 = ?
3

4 - 1 = 3
5 - 1 = ?
4

5 - 1 = 4
6 - 1 = ?
5

6 - 1 = 5
7 - 1 = ?
6

7 - 1 = 6
8 - 1 = ?
7

8 - 1 = 7
9 - 1 = ?
8

9 - 1 = 8
10 - 1 = ?
9

10 - 1 = 9
3 - 2 = ?
1

3 - 2 = 1
4 - 2 = ?
2

4 - 2 = 2
5 - 2 = ?
3

5 - 2 = 3
6 - 2 = ?
4

6 - 2 = 4
7 - 2 = ?
5

7 - 2 = 5
8 - 2 = ?
6

8 - 2 = 6
9 - 2 = ?
7

9 - 2 = 7
10 - 2 = ?
8

10 - 2 = 8
11 - 2 = ?
9

11 - 2 = 9
4 - 3 = ?
1

4 - 3 = 1
5 - 3 = ?
2

5 - 3 = 2
6 - 3 = ?
3

6 - 3 = 3
7 - 3 = ?
4

7 - 3 = 4
8 - 3 = ?
5

8 - 3 = 5
9 - 3 = ?
6

9 - 3 = 6
10 - 3 = ?
7

10 - 3 = 7
11 - 3 = ?
8

11 - 3 = 8
12 - 3 = ?
9

12 - 3 = 9
5 - 4 = ?
1

5 - 4 = 1
6 - 4 = ?
2

6 - 4 = 2
7 - 4 = ?
3

7 - 4 = 3
8 - 4 = ?
4

8 - 4 = 4
9 - 4 = ?
5

9 - 4 = 5
10 - 4 = ?
6

10 - 4 = 6
11 - 4 = ?
7

11 - 4 = 7
12 - 4 = ?
8

12 - 4 = 8
13 - 4 = ?
9

13 - 4 = 9
6 - 5 = ?
1

6 - 5 = 1
7 - 5 = ?
2

7 - 5 = 2
8 - 5 = ?
3

8 - 5 = 3
9 - 5 = ?
4

9 - 5 = 4
10 - 5 = ?
5

10 - 5 = 5
11 - 5 = ?
6

11 - 5 = 6
12 - 5 = ?
7

12 - 5 = 7
13 - 5 = ?
8

13 - 5 = 8
14 - 5 = ?
9

14 - 5 = 9
7 - 6 = ?
1

7 - 6 = 1
8 - 6 = ?
2

8 - 6 = 2
9 - 6 = ?
3

9 - 6 = 3
10 - 6 = ?
4

10 - 6 = 4
11 - 6 = ?
5

11 - 6 = 5
12 - 6 = ?
6

12 - 6 = 6
13 - 6 = ?
7

13 - 6 = 7
14 - 6 = ?
8

14 - 6 = 8
15 - 6 = ?
9

15 - 6 = 9
8 - 7 = ?
1

8 - 7 = 1
9 - 7 = ?
2

9 - 7 = 2
10 - 7 = ?
3

10 - 7 = 3
11 - 7 = ?
4

11 - 7 = 4
12 - 7 = ?
5

12 - 7 = 5
13 - 7 = ?
6

13 - 7 = 6
14 - 7 = ?
7

14 - 7 = 7
15 - 7 = ?
8

15 - 7 = 8
16 - 7 = ?
9

16 - 7 = 9
9 - 8 = ?
1

9 - 8 = 1
10 - 8 = ?
2

10 - 8 = 2
11 - 8 = ?
3

11 - 8 = 3
12 - 8 = ?
4

12 - 8 = 4
13 - 8 = ?
5

13 - 8 = 5
14 - 8 = ?
6

14 - 8 = 6
15 - 8 = ?
7

15 - 8 = 7
16 - 8 = ?
8

16 - 8 = 8
17 - 8 = ?
9

17 - 8 = 9
10 - 9 = ?
1

10 - 9 = 1
11 - 9 = ?
2

11 - 9 = 2
12 - 9 = ?
3

12 - 9 = 3
13 - 9 = ?
4

13 - 9 = 4
14 - 9 = ?
5

14 - 9 = 5
15 - 9 = ?
6

15 - 9 = 6
16 - 9 = ?
7

16 - 9 = 7
17 - 9 = ?
8

17 - 9 = 8
18 - 9 = ?
9

18 - 9 = 9