Lesson Recap

-5 + -3 =

• 8

• -8

• -2

• 2

• 11

• 17

• 21

• 12

A prime number between 10 and 15

What are all the factors of 8

What are the first 3 multiples of 6?

• 3,6,9

• 12,18,24

• 6,18,24

• 6,12,18

What is the smallest prime number?

A prime number less than 10

• 4

• 1

• 7

• 9

2 11 7 13 9 3

Which of these is not a prime number?

3 12 16 17 18 20 22 15

From the list of number, which two are factors of 45?

• 3,15

• 18,22

• 3,20

• 12,15

True or false

All prime numbers are odd?