Module 3 Mid-Module Assessment

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

• $7\div21=3$

• $21\div7=3$

• $21\times7=3$

• $7\div3=21$

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.

• $48\times c=8$ and $48\div8=c$

• $48\div8=c$ and $8\times c=48$

• $8\div c=48$ and $8\times c=48$

• $c\div8=48$ and $48\div c=8$

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?

• 7 containers

• 5 containers

• 8 containers

• 6 containers

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. They are shown below. Explain how the array represents both 8 × 7 and 2 × (4 × 7).

• The array shows 8 rows of 7. 8 rows of 7 can be written as 8x7.

  4x7 is the same thing as 8x7

• This can be written as 2x (4x7) because it's 4x7 two times. The whole array is 8 rows of 7. 8 rows of 7 can be written as 8x7.

• 2x4x7 is the same as 8x7.

Raelynn wins a bumblebee doll with 6 stripes. She 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.

•  $6\times6=s$   $s=36$  

•  $5\times6=s\ \ \ \ \ s=36$ 

•  $6\times6=s\ \ \ s=30$ 

•  $5\times6=s\ \ \ \ s=30$ 

The magician uses a magic box. Every time he puts an object in, it gets multiplied. Fabrizio writes down what happens each time and tries to find a pattern. Look at his notes to the right.

Use the pattern to fill in the number of bean bags.

• 40 Bean bags

• 42 Bean bags

• 7 Bean bags

• 45 Bean bags

The magician uses a magic box. Every time he puts an object in, it gets multiplied. Fabrizio writes down what happens each time and tries to find a pattern. Look at his notes to the right.

What does the magic box do?

• Divide by 6

• Multiply by 6

• Divide by 7

• Multiply by 7

The magician puts 12 rings into the magic box. Raelynn draws a number bond to find the total number of rings after they are multiplied in the magic box. Use the number bond to show how Raelynn might have solved the problem.

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Raelynn 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 Raelynn pay?

• $6.00

• $10.00

• $5.00

• $9.00

7× 4 = (☐ × 4) + (☐ × 4)

• 5, 2

• 6, 10

• 3, 3

• 2, 2