Doubles +/- 1 Flashcards
1
Q
8 + 9
A
17
2
Q
1 + 2
A
3
3
Q
5 + 4
A
9
4
Q
6 + 7
A
13
5
Q
9 + 8
A
17
6
Q
3 + 4
A
7
7
Q
3 + 2
A
5
8
Q
7 + 8
A
15
9
Q
9 + 10
A
19
10
Q
6 + 5
A
11
11
Q
8 + 7
A
15
12
Q
7 + 6
A
13
