40 + 3 =
50 + 9 =
20 + 8 =
30 + 7 =
40 + 1 =
60 + 6 =
10 + 7 =
50 + 8 =
30 + 5 =
33 - 10 =
50 + 4 =
52 + 10 =
10 + 4 =
