Addition (+)
3+1=
4
7-3=
4
1 dime + 2 pennies
12¢
6+6=
12
10-1=
9
1 quarter + 3 pennies
28 ¢
9+9=
18
12-10=
2
1 dime + 1 nickel
15 ¢
10+8=
18
20-10=
10
1 dime + 1 penny + 1 nickel
16 ¢
10+12=
22
32-11=
21
1 dollar + 2 dimes+ 3 pennies
$ 1. 23