Unit 4 Study Guide

Brice is multiplying 32 × 324 using the US Standard Algorithm. What belongs on the row with N? What is the product?

• The row with N is 9,720. The product is 10,368.

• The row with N is 9,620. The product is 9,368.

• The row with N is 972. The product is 1,610.

• The row with N is 962. The product is 1,620.

Rachelle planted a rectangular flower garden. The total area of the flower garden is 1,152 square feet. The length of the flower garden is 48 feet. What is the width of the flower garden?

• 22 feet

• 24 feet

• 34 feet

• 55,296 feet

Fifth grade students took a field trip to the Asheboro Zoo.

● There were 72 students on the field trip.

● There were 5 tour groups.

● Mrs. East divided 72 by 5. The answer was

 14 r 2.

What do the 14 and 2 represent in Mrs. East’s answer?

• A 14 represents the number of tour groups needed. 2 represents the students that will not be allowed to go on the field trip.

• 1. 14 represents the smallest number of students that will be in each group. 2

  represents the number of additional groups that will be needed.

• 1. 14 represents the number of tour groups needed. 2 represents the number

  of students in each group.

  
  
  

•  14 represents the smallest number of students that will be in each group. 2 represents the extra students who will be added as a fifteenth student to some of the groups.

Mrs. Gust bought 4 small bags and 14 large bags of candy for a school carnival. Each small bag had 65 pieces of candy. Each large bag had 126 pieces of candy. How many pieces of candy did Mrs. Gust buy?

• 2,024

• 1,924

• 1,764

• 890

Choose the number that is closest to the value of the expression 11,786 ÷ 6.

• 20,000

• 2,000

• 200

• 20

Tyrrell is using an open array to find the product of 82 x 135. He forgot to write the number in the part of the array labeled N.

  *What number should Tyrell  have written instead of N?

A car factory creates new cars and ships them to car dealers in different states. The factory operates for 72 hours each week and creates 35 cars each hour. An equal number of new cars is shipped to 18 different states each week. How many cars are sent to each state each week?

• 45,360

• 2,520

• 140

• 6

How many rows of 25 seats are in the theater?

• 18

• 20

• 22

• 25

Cody wants to buy two Lego sets. The first set has 823 bricks. The second set has 14 times as many bricks. How many bricks are in the second Lego set?

• 11,522

• 11,542

• 11,502

• 11,532

This word problems that can be solved using this equation: 128 ÷ 10 =  12 r 8

Select the right answer to the word problem below.

The principal has 128 erasers. He gives the erasers to 10 classes. How many can he give each class if he wants to give an equal number to each one?

• 12

• 13

• 12.80

• 12 or 13