Basic Addition Math Facts > Doubles +/- 1 > Flashcards
8 + 9
17
1 + 2
3
5 + 4
9
6 + 7
13
9 + 8
3 + 4
7
3 + 2
5
7 + 8
15
9 + 10
19
6 + 5
11
8 + 7
7 + 6