Adding 1 digits
4 + 2 =
6
7 - 6 =
1
14
12 - 10 =
2
10 + 4 =
14
3 + 5 =
8
9 - 6 =
3
28 + 15 =
43
22 - 15 =
7
22 - 15 =
7
6 + 4 =
10
8 - 2 =
6
30 + 25 =
55
45 - 32 =
13
50 + 13 =
63
9 + 8 =
17
9 - 4 =
5
42 + 31 =
73
55 - 10 =
45
45 - 6 =
39
10 + 9 =
19
8 - 8 =
0
50 + 45 =
95
80 - 45 =
35
25 + 25 =
100