Subtraction Flashcards
(9 cards)
0
Q
1-2
A
1
1
Q
1-1
A
0
2
Q
3-1
A
2
3
Q
4-1
A
3
4
Q
5-1
A
4
5
Q
6-1
A
5
6
Q
7-1
A
6
7
Q
8-1
A
7
8
Q
9-1
A
8