10 + ____ = 13
3
8 + 2 =
10
10 + ____ = 12
2
5 + 3 =
8
7 + ____ = 17
10
10 + 6 =
16
5 + ____ = 10
5
3 + 7 =
10
10 + 4 =
14
4 + 10 =
14
10 + ____ = 16
6
20 + 4 =
24
1 + ____ = 10
9
10 + 8 =
18
20 + 8 =
28
6 + ____ = 16
10
6 + 10 =
16
5 + 10 =
15
10 + ____ = 18
8
20 + 7 =
27
30 + 2 =
32
30 + 6 =
36
6 + 30 =
36
5 + 20 =
25