add Flashcards
(13 cards)
1
Q
9+11
A
20
2
Q
7+15
A
22
3
Q
8+19
A
27
4
Q
23-20
A
3
5
Q
20-8
A
12
6
Q
99-90
A
9
7
Q
32-30
A
2
8
Q
18-8
A
10
9
Q
35-5
A
30
10
Q
12-7
A
5
11
Q
20+22
A
42
12
Q
66+4
A
70
13
Q
88-8
A
80
