Doubles Plus One Flashcards
1
Q
2+3
A
5
2
Q
3+4
A
7
3
Q
4+5
A
9
4
Q
5+6
A
11
5
Q
6+7
A
13
6
Q
7+8
A
15
7
Q
8+9
A
17
8
Q
1+2
A
3
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