Unit 3 Practice

Look at this expression.

4 × (49 + 20)

Which statement has the same meaning as the expression?

• four more than the sum of forty-nine and twenty

• the sum of forty-nine and twenty multiplied by four

• four more than the product of forty-nine and twenty

• the product of four and forty-nine added to twenty

Answer explanation

The expression 4 × (49 + 20) means to multiply the sum of 49 and 20 by 4. Thus, the correct statement is 'the sum of forty-nine and twenty multiplied by four', which accurately reflects the original expression.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Phoenix needs to know how many bananas to order for the next 26 weeks for a school project. Each week, the monkeys at the zoo eat a total of 63 bananas. How many bananas should Phoenix order?

• 504

• 1,638

• 1,738

• 5,140

Answer explanation

To find the total bananas needed for 26 weeks, multiply the weekly consumption (63 bananas) by the number of weeks (26). 63 x 26 = 1,638. Therefore, Phoenix should order 1,638 bananas.

Tags

CCSS.5.NBT.B.5

Edward received 1,105 marbles. Edward would like to give each of his friends some marbles. If Edward has 12 friends, how many marbles would each person, including Edward, receive?

Answer explanation

Edward has 12 friends, making a total of 13 people (including himself). Dividing 1,105 marbles by 13 gives each person 85.

Tags

CCSS.5.NBT.B.6

Which expression is equal to 29?

• 20 + (13 – 4)

• (20 – 13) + 4

• 20 – (4 + 13)

• (13 + 4) – 20

Answer explanation

To find which expression equals 29, evaluate each option. The correct choice, 20 + (13 – 4), simplifies to 20 + 9, which equals 29. The other options do not equal 29.

Tags

CCSS.5.OA.A.1

Asia sold 9 bouquets of flowers. Each bouquet consisted of 5 pink carnations and 3 white carnations. Which expression could Asia use to find the total number of flowers she sold?

• (9 × 5) + 3 =

• 9 × (5 + 3) =

• (9 + 5) × 3 =

• 9 + (5 × 3) =

Answer explanation

Asia sold 9 bouquets, each with 5 pink and 3 white carnations. To find the total flowers, use 9 × (5 + 3) to account for all flowers in each bouquet. This correctly calculates the total number of flowers sold.

Tags

CCSS.5.OA.A.2

CCSS.5.NBT.B.5

Which equation has the same unknown value as 588 ÷ 12 = □?

• □ ÷ 588 = 12

• 12 × □ = 588

• 588 × □ = 12

• □ ÷ 12 = 588

Answer explanation

The equation 588 ÷ 12 = □ can be rewritten using multiplication. Since division is the inverse of multiplication, we can express it as 12 × □ = 588, making this the correct choice.

Tags

CCSS.5.NBT.B.6

Evaluate the expression below.
9 + (7 × 4) − 13
Type your answer in the box below.

Answer explanation

To evaluate 9 + (7 × 4) − 13, first calculate 7 × 4 = 28. Then, substitute: 9 + 28 − 13 = 24. Next, 9 + 28 = 37. Finally, 37 − 13 = 24. Thus, the correct answer is 24.

Tags

CCSS.5.OA.A.1

Enter the product of 435 × 29.

Answer explanation

The product of 435 and 29 is 12615.

Tags

CCSS.5.NBT.B.5

Riley bakes 288 cookies. He puts 12 cookies in each package he sells. How many packages can he sell?

• 24 packages

• 12 packages

• 15 packages

• 14 packages

Answer explanation

To find the number of packages Riley can sell, divide the total cookies by the number of cookies per package: 288 ÷ 12 = 24. Therefore, he can sell 24 packages.

Tags

CCSS.5.NBT.B.6

Yasir, Kennedy, and Nathaniel are asked to write an expression to represent 7 times the sum of 8 plus 5. Two of the three students wrote it correctly. Which two students have written the correct expression? Explain why they are correct and the other student is not.

Answer explanation

Yasir and Kennedy wrote the correct expression: 7 * (8 + 5). They correctly interpreted '7 times the sum of 8 plus 5'. Nathaniel likely misinterpreted the order or omitted parentheses, leading to an incorrect expression.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2