Addition
20 + 30
50
17 - 2
2 groups of 5 =
What is the value of a nickel?
5 cents
How many sides does a triangle have?
3
50 + 50
70 - 30
40
3 groups of 3 =
9
What is the value of a dime?
10 cents
What is the name of a quadrilateral with 4 equal sides?
square
34 + 25
59
48 - 23
25
4 groups of 5 =
What is the value of a quarter?
25 cents
What is the name of a polygon with 5 sides?
pentagon
120 + 130
250
190 - 40
150
6 groups of 10
60
How much money is 3 dimes and 1 pennies?
31 cents
What is the name a polygon with 6 sides?
hexagon
What is the name of the answer to an addition problem?
sum
What is the name of the answer to a subtraction problem?
difference
10 groups of 10
100
60 cents
What is the name of the polygon used for STOP signs?
octogon