Math in Focus Grade 2 Chapter 16 Answer Key Using Bar Models: Multiplication and Division

This handy Math in Focus Grade 2 Workbook Answer Key Chapter 16 Using Bar Models: Multiplication and Division detailed solutions for the textbook questions.

Math in Focus Grade 2 Chapter 16 Answer Key Using Bar Models: Multiplication and Division

Math Journal

Fill in the blanks, circles, and ovals.

To show 3 groups of 6 strawberries,
Step 1: I draw __________ strips of equal lengths in a row to represent 3 groups.
Step 2: I write the number ________ in the oval above one strip and a _________ in the oval below the strips.
Step 3: I write the number sentence.

Step 4: I _________ to find the answer.

Put On Your Thinking Cap!

Challenging Practice

Macy has some ropes, each 2 feet long. Nellie has some ropes, each 3 feet long. Oscar has some ropes, each 5 feet long. What is the length of each line of ropes when they are of the same length?

Put On Your Thinking Cap!

Problem Solving

Sheena bakes 100 muffins. She shares them equally with 4- other girls. How many muffins does each girl get? How many more muffins are needed so that each one gets two more muffins?

So, 100 ÷ 4 = 25
Therefore, each girl gets 26 muffins.

So, 4 x 2 = 8
Therefore, 8 muffins are needed so that each one gets two more muffins.

Chapter Review/Test

Concepts and Skills

Match each bar model to a word problem. Then solve the problem.

Problem Solving

Write whether you need to multiply or divide. Then solve. Draw bar models to help you.

Question 4.
Jason has 5 apricots on each tray. He has a total of 50 apricots. How many trays are there?
There are ___________ trays.

So, 50 ÷ 5 = 10
Therefore, there are 10 trays.

Question 5.
Claire paints 90 masks. She divides the masks equally and puts them in baskets. She puts 10 masks in each basket. How many baskets are there in all?
There are __________ baskets in all.

So, 90 ÷ 10 = 9
Therefore, there are 9 baskets in all.

Write whether you need to multiply or divide. Then solve. Draw bar models to help you.

Question 6.
Sonny helps his mother pack old books in 6 boxes. Each box has a mass of 4- kilograms. What is the total mass of 6 boxes of books?
The total mass of 6 boxes of books is ___________ kilograms.

So, 6 x 4 = 24
Therefore, the total mass of 6-boxes is 24 kilograms.

Question 7.
Sarah is making necklaces for her friends. She needs 12 feet of string for the necklaces. Each necklace needs a string 2 feet long. How many necklaces is Sarah making?
Sarah is making ___________ necklaces.

So, 12 ÷ 2 = 6
Therefore, Sarah is making 6 necklaces.

Tell whether you need to multiply or divide. Then solve. Draw bar models to help you.

Question 8.
Billy’s cats drink 4- liters of milk in a week. How much milk do the cats drink in 4 weeks?
The cats drink ___________ liters of milk.
Mr. Andres has 4 grandsons. He gives each of them $5. How much does he give his grandsons in all? He gives$___________ to his grandsons.