Unit 2 - Mid Unit Review

Scarlett, Grace, and Avery are having a cupcake party! They have 32 cupcakes and want to divide them equally among containers. Which list shows all the possible numbers of cupcakes they can put into each container?

Hint: What are ALL the factors of 32?

• 1, 2, 4

• 1, 2, 16, 32

• 1, 2, 4, 8, 16, 32

• 4, 8, 16, 32

Decide is each number is prime or composite. Drag and drop each number to categorize it as prime or composite.

Groups:

(a) Prime

,

(b) Composite

,

(c) Neither

• 21

• 10

• 37

• 18

• 13

• 19

• 2

• 1

• 7

Mia, Michael, and Liam are having a friendly competition to see who can solve this math problem the fastest: 8 x 4 = 32. Can you help them out?

Choose all THREE correct comparisons.

(Remember, when you see the word "is", think of it as an equal sign)

• 32 is 4 times as many as 8

• 4 times as many as 32 is 8

• 8 is 4 times as many as 32

• 32 is 8 times as many as 4

• 8 times as many as 4 is 32

Evelyn, Daniel, and Liam are playing a game of number detective. They found a mysterious note with the numbers 8, 16, 24, 32, 40. Can you help them figure out what these numbers have in common?

Select TWO correct answers!

• They are all FACTORS of 8

• They are all MULTIPLES of 12

• They all have 8 as a FACTOR

• They are all MULTIPLES (products) of 8

• They are all MULTIPLES (products) of 6

Write a multiplicative comparison statement for the following equation:

3 x 7 = 21

Finish the sentence stem: ______ is _______ times as many as ______.

Tags

CCSS.4.OA.A.1

Luna, Henry, and Abigail are playing a fun game of basketball with their team, the Dolphins. Can you help them figure out how many points the Dolphins scored?

Here's a hint: If you know the total (product) and only ONE factor, what operation should you use?

• 45 - 5 = d

• 5 + 45 = d

• 5 x 45 = d

• 45 ÷ 5 = d

Last year, 63 inches of rain fell in Oaktown. In Pine City, 7 inches of rain fell last year.

Write and solve an equation to find how many times as much rain fell in Oaktown last year as fell in Pine City.

HINT: 7 x ____ = 63

Try drawing an array model, skip counting, or drawing equal groups of 7 until you get to 63!

Mathematical Equivalence

OFF

Luna, Lily, and Grace are on a treasure hunt and they found a magic box that can only be opened by the correct factor pairs of 36. Can you help them unlock the magic box?

Select all THREE correct factor pairs.

• 3 and 12

• 6 and 7

• 2 and 18

• 4 and 9

• 9 and 5

Tags

Factors and Multiples

Isabella, Sophia, and Mia are playing a game of soccer with their team, the Sharks. The Sharks scored 60 points during their soccer game. They scored 6 times as many points as the other team. How many points did the other team score?

Here's a hint: If you know the total (product) and only ONE factor, what operation should you use?

• 60 - 6 = p

• 6 + 60 = p

• 6 x 60 = p

• 60 ÷ 6 = p

Charlotte, Amelia, and Harper are having a cookie party! They have 24 cookies and want to divide them equally among plates. Which list shows all the possible numbers of cookies they can put into each plate?

Hint: What are ALL the factors of 24?

• 1, 2, 3, 4, 6, 8, 12, 24

• 2, 3, 4, 6, 12

• 1, 2, 3, 4, 5, 6, 8, 12

• 1, 2, 3, 4