Module 3 Review

Super Strategies

100

Use a break apart strategy to solve 7 x 7. 

7 x 7 = 49

200

Use an array to solve 9 x 8. 

9 x 8 = 72

300

4 x 6 x 5 = g

g = 120

400

True or False?

6 x 7 = (1 x 7) + (5 x 7)

True

500

Which of these equations equals 24?

a. 4 + 4 + 4 + 4 + 4

b. (5 x 4) + 4

c. (2 x 6) + (2 x 6)

d. (2 x 8) + 8

b, c, and d all equal 24

Computation

100

4 x s = 24

s = 6

200

54 ÷ 6 = c

c = 9

300

List 2 multiplication equations with the product 40. 

1 x 40

2 x 20

4 x 10

5 x 8

400

8 x 60 = p

p = 48

500

9 x r = 81

r = 9

Word Problems

100

Susan had 7 fish bowls. There were 8 fish in each bowl. How many fish did she have all together?

7 x 8 = 56

Susan had 56 fish. 

200

Tom had 36 apples. He ate the same amount of apples on Monday, Tuesday, Wednesday, and Thursday. How many apples did he eat each day?

36 ÷ 4 = 9

He ate 9 apples each day. 

300

George has 4 packs of crayons. Hillary has 5 packs of crayons. Each pack has 10 crayons in it. How many crayons do they have all together?

(4 + 5) x 10 = 90

They have 90 crayons in all. 

400

Karen had 4 pans of cookies. Each pan had 3 rows of 4 cookies. How many cookies did she have all together?

4 x 3 x 4 = 48 cookies

Karen had 48 cookies all together. 

500

Jackson has 7 rolls of pennies. There are 50 pennies in each roll. He brought them to the store to buy a drink that cost $2.00. How much money does he have left?

7 x 50 = 350, so Jackson has $3.50. 

3.50-2.00= 1.50

Jackson has $1.50 left. 

Parentheses

100

(9 x 2) + 7 = d

d = 25

200

(3 x 4) + (5 x 4) = r

r = 32

300

(10 x 7) - (1 x 7) = p

p = 63

400

What would the value of each of these equations be?

(7 x 3) - 2 = a

7 x (3 - 2) = b

a = 19

b = 7

500

Where would the parentheses go to make this equation true?

8 + 4 x 2 = 16

8 + (4 x 2) = 16

Patterns

100

What is one pattern you notice about the product of any number multiplied by 10. 

(1 x 10, 2 x 10, 3 x 10, 4 x 10, etc.)

There is always a 0 in the ones place. 

200

What is a pattern you notice about the product of any number multiplied by 5?

(1 x 5, 2 x 5, 3 x 5, 4 x 5, n x 5, etc.)

There is always either a 0 or a 5 in the ones place. 

300

What is one equation that will have an odd product?

Any odd x odd equation. 

400

Will 54 x 767 have an even or an odd product? How do you know?

It will have an even product, because an even number times any number will always have an even product. 

500

3 x n = An even product. 

Give 3 possible values for n. 

n= any even number

(2, 4, 6, 8, 10, 12, 14, etc)