Topic 7

Margie has 64 rectangular stepping stones to arrange in an array in her backyard. Which of the following are possible arrays Margie can make with the stamps? Select all that apply.

• 2 x 32

• 3 x 21

• 4 x 16

• 6 x 8

• 8 x 8

Tags

CCSS.4.OA.B.4

What are all of the factors of 64?

• 1, 2, 8, 32, 64

• 1, 2, 4, 16, 32, 64

• 1, 2, 4, 8, 16, 32, 64

• 1, 2, 3, 4, 8, 16, 32, 64

Tags

CCSS.4.OA.B.4

Which of the following statements is true?

• 64 is a prime number because prime numbers have exactly one factor pair.

• 64 is a prime number because prime numbers have more than one factor pair.

• 64 is a composite number because composites have exactly one factor pair.

• 64 is composite because composites have more than one factor pair.

Tags

CCSS.4.OA.B.4

Which statement is true?

• The only factors of 4 are 4 and 1.

• The only factors of 5 are 5 and 1.

• The only factors of 16 are 16 and 1.

• The only factors of 18 are 18 and 1.

Tags

CCSS.4.OA.B.4

5 is a ______ number.

• composite

• prime

Tags

CCSS.4.OA.B.4

29 is a ______ number.

• composite

• prime

Tags

CCSS.4.OA.B.4

32 is a ______ number.

• composite

• prime

Tags

CCSS.4.OA.B.4

41 is a ______ number.

• composite

• prime

Tags

CCSS.4.OA.B.4

33 is a ______ number.

• composite

• prime

Tags

CCSS.4.OA.B.4

27 is a ______ number.

• composite

• prime

Tags

CCSS.4.OA.B.4