Unit 3 Grade 4 Math Go Math Practice Workbooks

C

The number 1 is: A prime B composite C both prime and composite D neither prime nor composite

A

The number 5 is: A prime B composite C both prime and composite D neither prime nor composite

C

The rule for a pattern is add 6. The first term is 5. Which of the following numbers is a term in the pattern? A 6 B 12 C 17 D 22

1 & 18, 2 & 9, 3& 6

What are the factor pairs of 18?

1 & 39, 3 & 13

What are the factor pairs of 39?

1 & 48, 2 & 24, 3& 16 , 4 & 12, 6 & 8

What are the factor pairs of 48?

6, 12, 18, 24, 30

What are the first 5 multiples of 6?

1, 2, 5, or 10 items

A food bank has 50 cans of vegetables, 30 loaves of bread, and 100 bottles of water. The volunteers will put the items into boxes. Each box will have the same number of food items and all the items in the box will be the same type. How many items can they put in each box?

1, 2, 4, or 8 items (the common factors of 24, 16, and 40)

Grace is preparing grab bags for her store's open house. She has 24 candles, 16 pens, and 40 figurines. Each grab bag will have the same number of items, and all the items in a bag will be the same. How many items can Grace put in each bag?

prime

Is 31 prime or composite?

Composite

Is 87 prime or composite?

yes, because both 2 and 3 are factors of 42

Is a 6 a factor of 42? Explain how you know.

no, because even though 2 is a factor of 56, 3 is not a factor. (both 2 and 3 must be a factor of the number for 6 to be a factor)

Is a 6 a factor of 56? Explain how you know.

$24

Jodie bought some shirts for $6 each. Marge bought some shirts for $8 each. The girls spent the same amount of money on shirts. What is the least amount they could have spent?

1 or 5 items

Justin has 20 pencils, 25 erasers, and 40 paper clips. He organizes them into groups with the same number of items in each group. All the items in a group will be the same type. How many items can he put in each group?

Lisa is wrong. 43 is a 2 digit odd number that is prime.

Lisa says that 43 is a 2-digit odd number that is composite. Is she correct? Explain.

C

Which is a true statement about 7 and 14? A 7 is a multiple of 14. B 14 is a factor of 7. C 14 is a common multiple of 7 and 14. D 21 is a common multiple of 7 and 14

D

Which list shows numbers that are all multiples of 4? A 2, 4, 6, 8 B 3, 7, 11, 15, 19 C 4, 14, 24, 34 D 4, 8, 12, 16

C

Which number is NOT a common factor of 15, 45, and 90? A 3 B 5 C 10 D 15

D

Which of the following lists all the factors of 24? A 1, 4, 6, 24 B 1, 3, 8, 24 C 3, 4, 6, 8 D 1, 2, 3, 4, 6, 8, 12, 24

B

Which of the following numbers does NOT have 5 as a factor? A 15 B 28 C 30 D 45

D

Which of the following numbers has 9 as a factor? A 28 B 30 C 39 D 45

D

Which of the following numbers is a common multiple of 5 and 9? A 9 B 14 C 36 D 45

5 rows of 14 ; 14 rows of 5; 7 rows of 10, or 10 rows of 7

Brooke has to set up 70 chairs in equal rows for the class talent show. But, there is not room for more than 20 rows. What are the possible number of rows that Brooke could set up?

He could not distribute them equally without having left overs because 6 is not a factor of 64.

Bryson buys a bag of 64 plastic miniature dinosaurs. Could he distribute them equally into six storage containers and not have any left over? Explain.

16 ( 1, 16, 2, 8, 4)

Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. What number is he thinking of?

Multiples of 4: 4,8, 12, 16, 20, 24, 28 , 32, 36 Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63 Common multiples: 28

List the next nine multiples of each number. Find the common multiples. Multiples of 4: 4, ___________ Multiples of 7: 7, ___________ Common multiples: __________

Lori needs 5 or 7 baskets.

Lori wants to distribute 35 peaches equally into baskets. She will use more than 1 but fewer than 10 baskets. How many baskets does Lori need?

B

Natalia has 48 tiles. Which of the following shows a factor pair for the number 48? A 4 and 8 B 6 and 8 C 2 and 12 D 3 and 24

A

Pat listed numbers that all have 15 as a multiple. Which of the following could be Pat's list? A 1, 3, 5, 15 B 1, 5, 10, 15 C 1, 15, 30, 45 D 15, 115, 215

B

What are all the common factors of 24, 64, and 88? A 1 and 4 B 1, 4, and 8 C 1, 4, 8, and 12 D 1, 4, 8, and 44

D

What are the next two terms in the pattern 3, 6, 5, 10, 9, 18, 17, . . .? A 16, 15 B 30, 31 C 33, 34 D 34, 33