iReady 4th Grade Unit 2 Mid Module Review

Multiples

100

List at least five multiples of 3

6, 9, 12, 15, 18, 21, 24, etc

200

List at least 5 multiples of 5

10,15, 20, 25, 30, 35, etc

300

List at least 5 multiples of 7

14, 21, 28, 35, 42, 49, etc

400

List at least 5 multiples of 8

16, 24, 32, 40, 48, 56, etc

500

List 5 multiples of 9

18, 27, 36, 45, 54, 63, etc

Factors

100

What is one factor pair of 18 (not 1, 18)

(3, 6)

200

List one factor pair of 36 (not 1, 36)

(2, 18)

(3, 12) 

(4, 9)

300

List ALL of the factor pairs of 45 (there are 3) 

(1, 45)

(3, 15)

(5, 9)

400

List all of the factor pairs of 28 (There are 3)

(1, 28)

(2, 14)

(4, 7)

500

List all of the factor pairs of 56 (There are 4) 

(1, 56)

(2, 28)

(4, 14)

(7, 8)

Vocabulary

100

Define Multiple

Any number you get as the product when multiplying a chosen number 

200

Define Factor

A number used to multiply by another to get a certain answer

300

Define Prime

A number that only has one factor pair, 1 and itself

400

Define composite

A number that has more than one factor pair

500

Define product AND quotient 

Product: answer to a multiplication problem

Quotient: answer to a division problem

Prime & Composite

100

Is 10 prime or composite? How do you know?

Composite. There is more than one factor pair

200

Is 27 prime or composite? How do you know?

Composite. There are 2 factor pairs

300

Give a prime number that is bigger than 10. 

11, 13, 17, etc

400

Give a composite number larger than 20. 

22, 24, 25, 28

500

List 2 prime numbers and 2 composite numbers

3, 7, 11, 13,

10, 12, 15, 20

Solve the problem

100

Daniel has 30 cupcakes he needs to split into containers. If he puts the same number of cupcakes in each container, what are all the ways he could package them? (Think factor pairs) 

1 container with 30 (or 30 containers with 1) 

2 containers with 15 in each (or 15 with 2 in each) 

3 containers with 10 in each (or 10 with 3 in each) 

200

Decide if each number is prime or composite

7, 10, 12, 15, 21, 23

300

Mike has 7 video games. His cousin Brady has 4 times as many as Mike. Write an equation that represents how to find how many video games Brady has. Include the product. 

7 x 4 = 28

4 x 7 = 28

400

What do all of these numbers have in common:4, 8, 12, 16, 20

They are all multiples of 4

500

Last year in Storm Lake 56 inches of rain fell. In Spencer, 8 inches of rain fell. How many times more rain fell in Storm Lake than in Spencer?

Think 

8 x ? = 56

7 times more

8 x 7 = 56