Easy Subtraction.
2 - 0 =
2
2 + 2 =
4
13 - 5 =
12 + 8 =
20
30 + 2 =
32
10 - 9 =
1
3 + 0 =
3
14 - 9 =
5
19 + 4 =
23
2 x 2 =
4
20 - 10 =
10
12 + 2 =
14
20 - 8 =
12
23 + 6 =
29
60 - 1 =
59
40 - 20 =
20
20 + 7 =
27
60 - 12 =
48
60 + 28 =
88
3 x 2 =
100 - 40 =
60
100 + 40 =
140
80 - 24 =
56
30 + 56 =
86
90