Double Trouble Facts thru 20 Flashcards
1
Q
0+0
A
0
2
Q
1+1
A
2
3
Q
2+2
A
4
4
Q
3+3
A
6
5
Q
4+4
A
8
6
Q
5+5
A
10
7
Q
6+6
A
12
8
Q
7+7
A
14
9
Q
8+8
A
16
10
Q
9+9
A
18
11
Q
10+10
A
20
12
Q
20-10
A
10
13
Q
18-9
A
9
14
Q
16-8
A
8
15
Q
14-7
A
7
