1st 9 weeks review

Which pair of numbers is relatively prime?

• 15 and 25

• 29 and 58

• 40 and 63

• 54 and 99

What is the prime factorization of 78?

• 3 x 26

• 5 x 16

• 2 x 3 x 13

• 2 x 2 x 2 x 2 x 5

Jennifer is making bouquets of flowers. She has 25 roses, 45 tulips and 15 snapdragons. Which expression is equivalent to the total number of flowers Jennifer is using to make bouquets?

• 5(5+9)+3

• 5(5 + 9 + 3)

• 25 + 3(9 + 5)

• 25 + 5(9+5)

Which expression could Fatima use to model and evaluate the area of the big rectangle?

• 7(3+9)

• 7(3)+9

• 9(3+7)

• 3(7x9)

The shaded squares in the figure shown represent 9/16 of the whole figure. Which statement best describes the fraction?

• It is exactly 1/2

• It is close to but less than 1/2

• It is close to but greater than 1/2

• It is not close to 1/2

Tamara is making a large omlet and needs a 1/2 cup of chopped tomatoes. She only has a 1/8 cup measuring cup. How many times should Tamara fill this measuring cup?

• 4

• 1

• 2

• 8

• 18

• 18

• 4

• 6

• 9

Which number is a positive rational number?

• 0

• -8

• 6

• 5

• 4

• 3