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Flashcards in missing no. Deck (14):
1

2 + ? = 4

2

2

? + 2 = 4

2

3

2 + ? = 5

3

4

? + 3 = 5

2

5

3 + ? = 5

2

6

? + 2 = 5

3

7

2 + ? = 6

4

8

? + 4 = 6

2

9

4 + ? = 6

2

10

? + 2 = 6

4

11

2 + ? = 7

5

12

? + 5 = 7

2

13

5 + ? = 7

2

14

? + 2 = 7

5