Money
how much is 3 nickels and 4 pennies?
19 cents
3+4=
7
10+10
20
20-10
10
How much is 4 dimes and 2 pennies worth?
42 cents
8+9=
17
30+10
40
30-10
20
How much is 2 quarters worth?
50 cents
10+11
21
50+10
60
50-10
40
How much is 1 dime and 10 pennies worth?
20 cents
20+21
41
100+10
110
80-10
70
How much is 2 quarters and 2 times worth?
70 cents
40+41
81
110+10
120
100-10
90