5 + 4 =
9
8+2 =
10
6 + 7
13
9 + 9 =
18
19 + 1 =
20
3+ 8 =
11
8 + 7 =
15
10 + 4 =
14
14 + _____ =
16
17 +1 =
18
5+ _____ =14
9
12 + 2 =
14
7 + _____ = 11
4
11 + 2 =
13
5 + 5 =
10
7 + 4 =
11
2 + _____ = 4
2
9 + 8 =
17
7 + 9 =
16
9 + 9 =
18
10 + 8 =
18
2 + 7 =
9
6+ _______ =12
6
5 + 1 =
6