Fact families
Factors
Multiples
Prime Factorization
Prime and Composite
100
What is the fact family using 8, 7, and 56?
8 x 7 = 56 7 x 8 = 56 56 / 7 = 8 56 / 8 = 7
100
What are the factors for 24? There are 8 factors.
1, 2, 3, 4, 6, 8, 12, 24
100
What are the first five multiples of 6?
6, 12, 18, 24, 30
100
What is the prime factorization for 48?
2 x 2 x 3 x 2 x 2 = 48
100
Which numbers are prime? 3 6 11 16 19
3, 11, 19
200
What is the fact family using 9, 7, and 63?
9 x 7 = 63 7 x 9 = 63 63 / 7 = 9 63 / 9 = 7
200
What are the factors for 30? There are 7 factors.
1, 2, 3, 5, 6, 15, 30
200
What are the first five multiples of 4?
4, 8, 12, 16, 20
200
What is the prime factorization for 36?
2 x 2 x 3 x 3 = 36
200
Which numbers are composite? 8 17 24 29 31
8, 24
300
What is the fact family using 4, p, and 36? What does p equal?
4 x p = 36 p x 4 = 36 36 / 4 = p 36 / p = 4 p = 9
300
What are the factors for 42? There are 8 factors.
1, 2, 3, 6, 7, 14, 21, 42
300
What are the first five multiples of 8?
8, 16, 24, 32, 40
300
What is the prime factorization for 54?
3 x 3 x 3 x 2 = 54
300
Which numbers are prime? 19 27 37 40 48
19, 37
400
What is the fact family using 3, 9, and w? What does w equal?
3 x 9 = w 9 x 3 = w w / 3 = 9 w / 9 = 3 w = 27
400
What are the factors for 63? There are 6 factors.
1, 3, 7, 9, 21, 63
400
What are the first five multiples of 9?
9, 18, 27, 36, 45
400
What is the prime factorization for 72?
2 x 2 x 2 x 3 x 3 = 72
400
Which numbers are composite? 42 43 44 45 47
42, 44, 45
500
What is the fact family using 8, d, and 64? What does d equal?
8 x d = 64 d x 8 = 64 64 / 8 = d 64 / d = 8 d = 8
500
What are the factors for 80? There are 10 factors.
1, 2, 4, 5, 8, 10, 16, 20, 40, 80
500
What are the first five multiples of 12?
12, 24, 36, 48, 60
500
What is the prime factorization for 126?
2 x 3 x 3 x 7 = 126
500
Which numbers are composite? 63 68 70 71 72
63, 70, 72
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