3rd Grade Review 1

An equation with a missing operation is shown. (5 × 2) + (5 × 6) = 5 □ (2 + 6) What is the missing operation?

• +

• -

• ×

• ÷

• 18

• 9

• 12

• 36

Enter a number in each box to create a true equation. 2 × 8 = (2 × [ ] ) + (2 × [ ] ).

• 3 and 5

• 4 and 3

• 2 and 2

• 8 and 7

Kendra wants to put her crayons into bags. Which grouping would result in Kendra putting 7 crayons in each bag?

• 4 crayons in 28 bags

• 42 crayons in 6 bags

• 54 crayons in 9 bags

• 21 crayons in 14 bags

Mrs. Smith puts the 24 desks in her classroom into equal rows. An array modeling the desks is shown. Select all of the expressions that relate to how Mrs. Smith puts the desks.

• 3 + 8

• 3 × 24

• 8 × 24

• 24 ÷ 3

• 24 ÷ 8

A group of 15 friends attend a dinner party. The friends sit equally at 3 tables. The equation shown represents the situation. 15 ÷ 3 = 5 What does the 5 represent?

• the number of tables

• the number of seats left over

• the number of friends at each table

• the number of seats at the dinner party

Select all of the situations that can be represented by 12 ÷ 3 = 4.

• 3 friends each have 12 dollars.

• 4 cups each have 12 ounces of water in them.

• 12 cookies are given out to 3 boys and 4 girls.

• 12 pieces of pizza are shared equally among 3 friends.

• 12 chairs are placed at tables so that each table has 4 chairs.

Ben and Carla want to put 48 marbles into bags modeling the equation 48 ÷ 6 = 8. - Ben says they can have 6 bags with 8 marbles in each bag. - Carla says they can have 8 bags with 6 marbles in each bag. Which statement is true?

• Only Ben is right, because there are 6 groups of 8 in 48.

• Only Carla is right, because there are 8 groups of 6 in 48.

• Both Ben and Carla are right, because both groupings create 48.

• Neither Ben nor Carla is right, because 48 cannot be split into groups of 6 or 8.

Select all of the methods that can be used to find the value of 35 ÷ 5.

• find a number that equals 5 when multiplied by 35

• find a number that equals 35 when multiplied by 5

• find the total number of objects in 5 groups of 35 objects

• find the total number of objects in 35 groups of 5 objects

• find the number of groups of 5 objects it takes to make 35 total