Multiplication
6 x 10
60
30 divided by 6
5
8 x 10
80
List the factors of 12
1, 2, 3, 4, 6, 12
What makes a number prime?
It only has 2 factors
4 x 6
24
36 divided by 4
9
6 x 5
30
List the factors of 24
1, 2, 3, 4, 6, 8, 12, 24
What are the factors of a prime number?
1 and itself
7 x 3
56 divided by 7
8
8 x 4
32
List one factor pair for 36
6 and 6, 1 and 36, 2 and 18, 3 and 12, 4 and 9
Is 36 composite or prime?
Composite
8 x 9
72
72 divided by 12
6
7 x 9
63
List the factors of 100
1, 2, 4, 5, 10, 20, 25, 50, 100
Is 2 prime or composite?
Prime
11 x 12
132
84 divided by 6
14
12 x 8
96
What factors of 100 are also factors of 400?
1, 2, 4, 5, 10, 20, 25, 50, 100
Is 57 prime or composite?
Composite