Prime or Composite
Is 0 prime, composite or neither?
neither
What are the factors of 18?
1, 18, 2, 9, 3, 6
What number sentence represents the repeated subtraction:
8-4=4 4-4=0
8/4=2
What is the fact family for the numbers 3, 6, 18?
3 x 6=18
6 x 3 =18
18/3=6
18/6=3
Is 32 prime, composite or neither?
composite
What are the factors of 27?
1, 27, 3, 9
What number sentence represents the repeated subtraction:
14-2=12 12-2=10 10-2=8 8-2=6 6-2=4 4-2=2 2-2=0
14/2=7
What is the fact family for the numbers 4, 6, 24?
4 x 6=24
6 x 4=24
24/6=4
24/4=6
Is 29 prime, composite or neither?
Prime
What are the factors of 24?
1, 24, 3, 8, 4, 6, 2, 12
What number sentence represents the repeated subtraction:
12-4=8 8-4=4 4-4=0
12/4=3
What is the fact family for the numbers 2, 11, 22?
2 x 11=22
11 x 2=22
22/11=2
22/2=11
Is 72 prime, composite or neither?
Composite
What are the factors of 12?
1, 12, 2, 6, 3, 4
What number sentence represents the repeated subtraction:
15-5=10 10-5=5 5-5=0
15/5=3
What is the fact family for the numbers 9, 6, 54?
9 x 6=54
6 x 9=54
54/6=9
54/9=6
Is 31 prime, composite or neither?
Prime
What are the factors of 21?
1, 21, 3, 7
What number sentence represents the repeated subtraction:
20-5=15 15-5=10 10-5=5 5-5=0
20/5=4
What is the fact family for the numbers 7, 6, 42?
7 x 6=42
6 x 7=42
42/7=6
42/6=7