1 digit addition
2 + 3 =
5
10 + 9 =
19
101 + 111
212
1 - 1 =
0
10
4 + 4 =
8
10 + 23 =
33
224 + 189
413
7 - 5 =
2
39 - 4 =
35
7 + 5 =
12
21 + 12
33
300 + 003
303
5 - 2 =
3
47 - 39 =
8
8 + 6 =
14
42 + 67 =
109
450 + 122 =
572
8 -7 =
1
59 - 25 =
34
9 + 9 =
18
55 + 73 =
128
768 + 236 =
1,004
9 - 2 =
7
89 - 73 =
16