Adding
4+4=
8
5-2=
3
How much is a penny worth?
1 cent
7 9
7 < 9
3+3=
6
3+7=
10
10-3=
7
How much is a dime worth?
10 cents
3 3
3=3
6
10+3=
13
7-7=
0
How much is 2 pennies and 1 dime worth?
12 cents
21 12
21>12
5+6=
11
8+8=
16
10-5=
5
How much is 2 dimes and 1 nickel worth?
25 cents
12 5
12 > 5
9+9=
18
8+9=
17
12-5=
7
How much is 3 dimes and 1 nickel?
31 cents
32 34
32 < 34
15-5=
10