Unit 3: Perform Operations Review

Check all the correct answers.

Which of the following numbers have 2 as a factor?

• 8

• 10

• 15

• 24

Check all the correct answers.

Which of the following numbers have 5 as a factor?

• 15

• 20

• 25

• 32

Is 3 a factor of 21?

• yes

• no

Is 3 a factor of 26?

• yes

• no

Is 5 a common factor of 75 and 80?

• yes

• no

Is 8 a common factor of 72 and 96?

• yes

• no

Find the missing factor.

28 = 7 x __

Find ALL FACTORS of 24

• 1, 2, 12, 24

• 1, 2, 8, 24

• 1, 2, 3, 4, 5, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

Which number is a factor of 10

• 3
• 4
• 5
• 8

Which number is a factor of 18

• 4
• 7
• 6
• 12