We included **HMH Into Math Grade 3 Answer Key**** PDF** **Module 6 Lesson 5 Represent Division with Arrays**Â to make students experts in learning maths.

## HMH Into Math Grade 3 Module 6 Lesson 5 Answer Key Represent Division with Arrays

I Can make or draw an array to solve division problems to find the number of objects in each row or the number of rows.

**Spark Your Learning**

Mr. Lopez is designing a building. He wants to place 36 windows on the front of the building. He wants each floor of the building to have an equal number of windows in a row.

**Draw a picture to show how the windows can be arranged.**

How many windows are Âˇn each row of your drawing?

_____________________

Answer:

There are 6 windows in each row.

How many rows of windows are there?

_____________________

Answer:

There is 6 row of windows.

**Turn and Talk** How could you use an equation to describe your drawing?

**Build Understanding**

1. Ms. Deal wants to place 18 windows on the front of the building she is designing. She wants each floor of the building to have a row of 6 windows. How can you use an array to find how many equal rows of windows are on the building?

A. How can you use tiles to show rows of 6 windows?

___________________

Answer:

The total number of windows in the front of the building is 18.

She wants each floor to have 6 rows of windows.

The total number of equal rows in a building is 18/6 = 3

**Show equal groups.**

B. Write a division equation to model the array you drew.

_____________________________

Answer:

The division equation is 18/6 = 3

C. How many equal rows of windows are on the building?

_____________________________

Answer:

There are 3 equal rows of windows are on the building.

**Turn and Talk** What operation could you use to find the number of equal groups without drawing an array?

2. Nikki puts 40 windows on the front of the building she is designing. She makes 5 rows. How many windows are in each row?

A. Complete the array to show equal groups.

Answer:

Given that,

The total number of windows is 40

The total number of rows is 5

Therefore the total number of rows in each row is 40/5 = 8.

B. Write a division equation to model the array. ____

Answer:

The division equation 40/5 = 8.

C. How many windows are in each row? ____

Answer:

There are 8 windows in each row

**Turn and Talk** Why can you use division to find the number of windows in each row?

**Check Understanding Math Board**

Question 1.

Saul puts 12 windows on the front of the building he is designing. He makes 6 rows. How many windows are in each row? ___

Answer:

Given that,

The total number of windows on the front of the building is 12.

The total number of rows in abuilding is 6.

Therefore the total number of windows in each row is 12/6 = 2.

**Make an array. Write a division equation.**

Question 2.

15 windows in rows of 5

_______________

Answer:

The division equation is 15/5 = 3.

Question 3.

24 windows in 3 rows

_______________

Answer:

The division equation is 24/3 = 8.

**On Your Own**

Question 4.

**Model with Mathematics** Joely puts 14 lettuce plants in a community garden. She puts 7 lettuce plants in each row. Write a division equation to find how many rows of lettuce plants Joely makes.

Answer:

Given that,

The total number of lettuce plants in a community garden is 14.

She puts lettuce plants in each row is 7

Joely makes the total number of rows is 14/7 is 2.

Question 5.

The seats at the stadium are arranged in rows. There are 80 seats in a section. There are 8 rows. How many seats are in each row?

Answer:

Given that,

The total number of seats = 80

The total number of rows = 8

Therefore the total number of seats in a row is 80/8 = 8.

Question 6.

**STEM** Some computers use ball grid arrays to connect electricity between parts of the computer. Ball grid arrays are metal balls that connect electricity. The metal balls are arranged in an array. Look at the center of this ball grid array. Write a division equation to find how many balls are in each row.

Answer:

Given that,

The total number of rows is 6.

The total number of columns is 6.

The total number of metal ball grids is 36.

Therefore 36/6 = 6

Question 7.

**Use Tools** The cafeteria has 24 tables arranged in rows of 4. How many rows of tables are in the cafeteria? Draw an array to show equal groups.

Answer:

Given that;

The total number of tables in the cafeteria is 24 tables.

The 24 tablets are arranged in 4 rows. is 24/4.

**I’m in a Learning Mindset!**

Am I focused on the task of using arrays to divide? Am I helping others focus? Explain.

___________________________________

___________________________________