Addition
30 + 40
70
67 - 39
28
_5_56
500
pentagon
5 sides and veritces
35 cents
1 quarter, 1 dime
27 + 28
55
100 - 92
8
93_1_
1
nonagon
9 sides and vertices
60 cents
5 dimes, 2 nickels
41 + 39
80
35 - 4
31
4_3_1
30
square
4 sides and vertices
5 cents
1 nickel
79 + 0
79
45 - 27
18
2_5_
5
hexagon
6 sides and veritces
98 cents
3 quarters, 2 dimes, 3 pennies
11 + 33
44
95 - 43
52
56_7_
7
octagon
8 sides and vertices
51 cents
2 quarters, 1 pennies