two + one =
3
eight - three =
5
six + three =
9
twelve - ten =
2
seven - two =
5
ten - three =
7
one + one =
2
four + three =
7
eight + two =
10
nine - two =
7
four + four =
8
six - three =
3
four + six =
10
eleven - three =
8
six + five =
11
two + two =
4
three + three =
6
ten - five =
5
twelve - four =
8
five + five =
10
eight + one =
9