Unit 7 and 8

Prime and Composite Numbers

100

The only prime number in this list:

4, 12, 15, 17

What is 17?

200

The only even prime number.

What is 2?

300

Select all the composite numbers:

2

5

13

15

22

29

31

33

15, 22, 33

400

Name all the factors of 16 that are also composite.

4, 8, 16

500

Name all of the factors of 36 that are also prime.

2 and 3

Equivalent Fractions

100

Fill in the missing number to make the fractions equivalent.

8/12 = ?/3

2