Difficult additions and subtractions Flashcards
1
Q
8+4
A
12
2
Q
7+6
A
13
3
Q
6+9
A
15
4
Q
8+3
A
11
5
Q
4+9
A
13
6
Q
9+5
A
14
7
Q
5+8
A
13
8
Q
9+2
A
11
9
Q
7+8
A
15
10
Q
5+7
A
12
11
Q
8+4
A
12
12
Q
7+6
A
13
13
Q
6+9
A
15
14
Q
8+3
A
11
15
Q
4+9
A
13
