Subtraction Related to Doubles Flashcards
1
Q
18 - 9
A
9
2
Q
16 - 8
A
8
3
Q
14 - 7
A
7
4
Q
12 - 6
A
6
5
Q
10 - 5
A
5
6
Q
8 - 4
A
4
7
Q
6 - 3
A
3
8
Q
4 - 2
A
2
9
Q
2 - 1
A
1
10
Q
20 - 10
A
10
