Click "next" to start subtraction - 3 flash cards

3 - 3 0
4 - 3 1
5 - 3 2
6 - 3 3
7 - 3 4
8 - 3 5
9 - 3 6
10 - 3 7
11 - 3 8
12 - 3 9
13 - 3 10
14 - 3 11