Show:
Factors
Multiples
Unknowns
Prime/Composite
Word Problems
100

List all the factors for 18

1,2,3,6,9,18

100

List the first five multiples of 6

6,12,18,24,30

100
What is the value of n? 


n * 6 = 12

n=2

100

Is 21 prime of composite? If it is composite what are the factors? 

Composite: 1,3,7,21

100

Amy is thinking of a number between 1 and 10 that has three factors. What could her number be? And what are the three factors?

The number is 9
The factors are 1,3,9 

200

List all the factors for 42

1,2,3,6,7,14,21,42

200
List the next 4 multiples: 4,8,12,16, ___, ___, ___, ___

20,24,28,32

200

What is the value of x?


X * 9= 72

x=8

200

Is 25 prime or composite? If it is composite what are the factors? 

1,5,25

200

Doug is thinking of a number 1 through 25. The number has eight factors. What is the number Doug is thinking of and what are the factors?

The number is: 24

The factors are: 1, 2, 3,4,6,8,12,24

300

List all the factors for 36

1,2,3,4,6,9,12,18,36

300

List what the three missing multiples would be in the sequence: __, ___, ___, 12,15,18

3,6,9

300

What is the value of r?


r*12=36

r=3

300

Is 97 prime or composite? If it is composite what are the factors? 

Prime

300

Jessica is setting up  20 chairs for the school play? What are the different arrays she can arrange the chairs? 

4 by 5 (4 x 5)
5 by 4 (5 X 4)

10 by 2 (10 x 2)

2 by 10 (2 x 10) 

1 by 20 (1x20)

20 by 1 (20 x 1) 

400

List all the factors for 60

1,2,3,4,5,6,10,12,15,20,30,60

400

List the first five multiples of 4 starting with 32

32,36,40,44,48

400

What is the value of n?


n*8=56

n=7

400

Is 57 prime of composite? If it is composite what are the factors? 

Composite: 1, 3,19,57
400

Mitchel has 18 squares to create a patio with. How many possible arrangements can he make with the squares? (How many different arrays can he make and what are they?) 

1 x 18, 18 x 1, 2 x 9, 9x2, 6x3, 3x6

500

List all the factors for 80

1,2,4,5,8,10,16,20,40,80

500

List the three missing multiples in the sequence: ____, _____, _____, 72, 80, 88, 96, 104

48, 56, 64

500

What is the value of t?


t * 12=144

t=12

500

Is 89 prime or composite? If it is composite what are the factors?

Prime

500

Kylie wants to plant a garden. She has 42 seeds. How many possible arrays can she create in her garden if she has to use all the seeds? 

1 x 42, 42 x 1, 7 x 6, 6 x7, 3x14, 14x3, 2 x 21, 21x2