Math Mid-Year Review

1. The carnival is in town for 21 days. How many weeks is the carnival in town? (There are 7 days in1 week.) Write an equation on scratch paper, and solve.

• 3

• 7

• 5

• 2

1. There are 4 rows of 7 chairs setup for the Magic Show. A worker sees the large number of people lined up and doubles the number of rows of chairs.

How many chairs are set up if they double then number of chairs? (Hint: Draw an array on a piece of paper and then double it.)

• 28

• 7

• 4

• 56

There are 48 liters of water needed to finish filling the dunk tank at the carnival. Each container holds 8 liters of water.

How many containers are needed to finish filling the dunk tank?

Represent the problem using multiplication and division sentences and a letter for the unknown. Solve.

• 48 x 8 = N

  N ÷ 48 = 8

• 8 x 48 = N

  48 ÷ N = 8

• 8 x N = 48

  48 ÷ 8 = N

• N x 48 = 8

  8 ÷ 48 = N

Fabio wins a bumblebee doll with 6 stripes. He notices that 5 other children in line for the Magic Show won the same doll. How many stripes are on 6 bumblebee dolls? Write an equation using a letter to represent the unknown. Solve.

• 5 x 6 = N

• (5 x 6) + 6 = N

• (6 x 6) + 6 = N

• 5 x (6 + 6) = N

Fabrizio wins a bumblebee doll with 6 stripes. He notices that 5 other children in line for the Magic Show won the same doll. How many stripes are on 6 bumblebee dolls?

How many stripes are on all the dolls?

• 35

• 30

• 25

• 36

After the show, Fabio and 5 friends equally share the cost of a $54 magic set. They use the equation 6 × N = $54 to figure out how much each person pays.

How much does Fabrizio pay?

• 7

• 8

• 9

• 10

Draw an array on a piece of paper for 7 x 6. Break the array apart to find the product.

What equations below will solve for

7 x 6?

• (5 x 6) + (2 x 6) = N

• (5 x 7) + (2 x 7) = N

• (1 x 6) + (5 x 7) = N

• 6 x (7 + 6) = N

Using the break apart method solve for 7 x 6.

• 24

• 36

• 13

• 42

Find 2 possible answers to the expression 2 + 3 x 5 by placing the parentheses in different places.

• 25 and 17

• 30 and 16

• 13 and 21

• 10 and 11

How many meters are in one kilometer?

• 10

• 100

• 1,000

• 10,000