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