Topic 7 Review

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 stones? Choose all that apply.

• 2 x 32

• 3 x 21

• 4 x 16

• 6 x 11

• 8 x 8

Margie has 64 rectangular stepping stones to arrange in an array in her backyard. What are all the factors of 64?

• 1, 2, 8, 32, 64

• 1, 2, 4, 8, 16, 32, 64

• 1, 2, 3, 4, 8, 16, 21, 64

• 64, 128, 192, 256, 320

Margie has 64 rectangular stepping stones to arrange in an array in her backyard. Which of the following are factor pairs for 64. Choose all that apply.

• 1 and 64

• 2 and 32

• 3 and 21

• 4 and 16

• 6 and 11

Paige wrote 4 sets of numbers. Which sets show only multiples of 8? Select all that apply.

• 8, 16, 24, 32

• 16, 32, 40, 64

• 1, 2, 4, 8

• 8, 80, 88, 800

Which statement is true?

• The only factors of 4 are 4 and 1

• The only factors of 7 are 7 and 1

• The only factors of 16 are 16 and 1

• The only factors of 32 are 32 and 1

29 is a _______________ number.

• prime

• composite

51 is a _______________ number.

• prime

• composite

62 is a _______________ number.

• prime

• composite

91 is a _______________ number.

• prime

• composite

Which set shows only multiples of 12?

• 1, 2, 3, 4, 6, 12

• 6, 12, 24, 60

• 12, 24, 60, 120

• 3, 6, 12, 24