Chapter 2: Addition

Mathematical Expressions

100

Michaela made 12 cupcakes. She then made c more. The total number of cupcakes she made is ______.

12 + c

200

Julia bought her dog 2 bags of treats. She then bought b more bags. The total number of bags she has is ____.

2 + b

300

Find the value of the expression.

23 + m, when m = 5

28

400

Find the value of the expression.

n + 54, when n = 10

64

500

Find the value of the expression.

z + 34, when z = 20

54

Addition Properties

100

Name the property used:

54 + 6 = 6 + 45

Commutative Property

200

Name the property used:

(23 + 8) + 22 = 23 + (8 + 22)

Associative Property

300

Name the property used:

20 + 0 = 20

Identity Property

400

Name the property used:

a + 45 = 45, when a = 0

Identity Property

500

Name the property used:

82 + 93 + 8 = 82 + 8 +93

Commutative Property

Estimating Sums

100

Estimate the sum:

34,392 + 33,763

68,000

200

Estimate the sum:

23,609 + 8,349

32,000

300

Estimate the Sum:

234,983 + 27,983

263,000

400

Estimate the sum:

834,038 + 423,034 + 121,976

1,379,000

500

Estimate the sum:

230,034,384 + 32,930,382 + 2,945,483

266,000,000

Adding Thousands and Millions

100

Find the sum:

34,893 + 30,892

65,785

200

Find the sum:

232,958 + 678,710

911,668

300

Find the sum:

3,983,029 + 2,030,483

6,013,512

400

Find the sum:

32,029 + 8,983 + 879

41,891

500

Find the sum:

546,029 + 210,773 + 591

757,393

Make an Organized List

100

Christie is on vacation and brought 3 pairs of pants (blue, black, and white) and 3 shirts (pink, yellow and green). How many different outfit combinations can she make?

9 different outfits

200

Tina wants to have exactly 16 cents. She only has nickels and pennies. What are all the different ways to do that?

4 different ways

300

You are planning a small game booth at the Harvest. You have a choice of 3 games and 4 different prizes. How many combinations of games and prizes are there?

12 different combinations

400

You are taking a 5-question true/false test. How many possible combinations of answers are there?

10 possible combinations

500

Noah is trying to figure out all the different combinations of ice cream toppings at his local ice cream shop. They have 3 different flavors (chocolate, vanilla and strawberry), but also have 4 different toppings (nuts, whipped cream, chocolate candies, and gummy bears). How many combinations can he choose from?

12 different combinations