Unit 1; Check 1 22-23

What is the greatest common factor (GCF) of 32 and 28?

• 2

• 4

• 6

• 8

What is the LCM of 4 and 10?

• 10

• 40

• 20

• 80

Which expression is equivalent to 9(2 + 4)

• 92 + 94

• 18 + 4

• 18 + 36

• 11 + 13

James was asked to use the GREATEST COMMON FACTOR and the DISTRIBUTIVE PROPERTY to write an equivalent expression for 24 + 36.

His answer was 2(12 + 18).

Which statement below is correct in describing James' answer?

• James' answer was correct.

• James did not use the distributive property correct. The answer should be 12(2 +36)

• James did not find the GCF. The correct answer is 12(2 + 3)

Which expression is equivalent to

8(3 + 11)?

• 24 + 11

• 83 + 811

• 24 + 88

• 8 + 3 + 8 + 11

Which expression is equivalent to

12 + 30?

• 2(6 + 30)

• 6(2 + 5)

• 5(12 + 6)

• 6(2 + 30)

Which expression is equivalent to

4(3 + 9)

• 12 + 9

• 12 + 36

• 43 + 49

Using the GCF and the distributive property, write an equivalent expression for 16+32.

• 6+2

• 16(1+2)

• 2(8+19)

• 16+2

Factor 3+27

• 3(1 + 3)

• 9(3 + 9)

• 3(3 - 3)

• 3(1+9)

What is the least common multiple (LCM) of 2 and 3?

• 6
• 8
• 20
• 10