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