The solutions to Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 2 Module 1 can help students to clear their doubts quickly.
Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 2 Module 1
Bridges in Mathematics Grade 3 Home Connections Unit 2 Module 1 Session 2 Answer Key
The Pet Store
Note to Family
At school, we have started looking for efficient ways to find the total number of items in a group. We studied a picture of a pet store that was full of packages and containers. We worked to figure out how many items were in each package and then how many were in all the packages together. Sometimes, the arrangement of items was helpful—for example, a package of cat food had 2 rows of cans with 5 cans in each one. This made it easier to count by 2s or 5s to find the total. Watch how your child makes use of each of the arrangements in this assignment to help find the total.
Use the pictures to find the total for each problem below. Show your thinking with numbers, sketches, or words.
ex How many cans of dog food are there? How do you know?
Question 1.
How many cans of cat food are there? How do you know?
Answer:
7 + 7 = 14
There are 14 cans of cat food.
Question 2.
How many balls are there in all? How do you know?
Answer:
3 + 3 + 3 + 3 = 12
There are 12 balls in all.
Question 3.
How many chew toys are there? How do you know?
Answer:
5 + 5 + 5 = 15
There are 15 chew toys.
Question 4.
Fill in the blanks.
17 – 8 = ____ 6 + 7 = ____ 13 – 9 = _____
3 + ___ = 10 16 – ___ = 8 5 + ___ = 15
4 + 4 + 4 + 4 = ____ 8 + 8 + 8 = ____ 6 + 6 + 6 = ____
Answer:
17 – 8 = 9
6 + 7 = 13
13 – 9 = 4
3 + 7 = 10
16 – 8 = 8
5 + 10 = 15
4 + 4 + 4 + 4 = 16
8 + 8 + 8 = 24
6 + 6 + 6 = 18
Question 5.
CHALLENGE Molly’s kitten weighed 3 pounds when she got her. Now the kitten has gained 4 pounds, and Molly’s dog weighs 4 times as much as her kitten.
a. How many pounds does the kitten weigh now? Write equations to show your thinking.
Answer:
Given,
Molly’s kitten weighed 3 pounds when she got her.
Now the kitten has gained 4 pounds
3 + 4 = 7
The kitten weighs 7 pounds.
b. How many pounds does the dog weigh? Write equations to show your thinking.
Answer:
The kitten weighs 7 pounds.
Molly’s dog weighs 4 times as much as her kitten.
7 × 4 = 28
The dog weighs 28 pounds.
Bridges in Mathematics Grade 3 Home Connections Unit 2 Module 1 Session 4 Answer Key
Stamp Challenges
Use the images to find the total for each problem below. Show your thinking with numbers, sketches, or words.
ex
How many stamps do you see? What is the total cost of the stamps?
Question 1.
How many stamps do you see? What is the total cost of the stamps?
Answer:
16 + 16 + 16 = 48¢
12 + 12 + 12 + 12 = 48¢
the total cost of the stamps is 48¢
Question 2.
How many stamps do you see? What is the total cost of the stamps?
Answer:
15 + 15 = 30¢
6 + 6 + 6 + 6 + 6 = 30¢
the total cost of the stamps is 30¢
Question 3.
How many stamps do you see? What is the total cost of the stamps?
Answer:
12 + 12 + 12 + 12 + 12 = 60¢
30 + 30 = 60¢
the total cost of the stamps is 60¢
Question 4.
Explain your thinking with sketches, words, and equations.
a. Stevie has 4 cards with 8 stamps on each card. Cindy has 8 cards with 4 stamps on each card. Who has more stamps, Stevie or Cindy?
Answer:
Given,
Stevie has 4 cards with 8 stamps on each card.
Cindy has 8 cards with 4 stamps on each card.
8 × 4 = 32
They each have 32 stamps.
b. CHALLENGE Liz bought sixteen 3¢ stamps and used them to mail two letters to her grandparents. If each letter used the same number of stamps, how much did it cost to mail each letter?
Answer:
8 × 3 = 24¢
c. CHALLENGE Create a new set of stamps. Decide how many stamps you want in the array and how much each stamp costs. (They should all cost the same amount.) Then find the total cost of the stamps.
Answer:
Answer:
12 + 12 + 12 + 12 + 12 = 60¢
30 + 30 = 60¢
the total cost of the stamps is 60¢
Bridges in Mathematics Grade 3 Home Connections Unit 2 Module 1 Session 6 Answer Key
Leaves & Flower Petals
Answer each question below. Write an addition or multiplication equation to show how you figured it out.
ex
Answer the question
There are 3 flowers. How many leaves>
6
write an equation
2 + 2 + 2 = 6
or
3 × 2 = 6
Question 1.
Answer the question
There are 3 flowers. How many petals?
write an equation
Answer:
5 + 5 + 5 = 15
5 × 3 = 15
There are 15 petals.
Question 2.
Answer the question
There are 7 flowers. How many leaves?
write an equation
Answer:
2 + 2 + 2 + 2 + 2 + 2 + 2 = 14
7 × 2 = 14
There are 14 leaves.
Question 3.
Answer the question
There are 4 flowers. How many petals?
write an equation
Answer:
5 + 5 + 5 + 5 = 20
4 × 5 = 20
There are 20 petals.
Complete the following problems. Show your work using numbers, sketches, or words.
Question 4.
Mrs. Foley picked 27 flowers from her garden so her 3 children could each give a bouquet to their teachers. If each bouquet had the same number of flowers, how many flowers did each teacher get?
Answer:
Given,
Mrs. Foley picked 27 flowers from her garden so her 3 children could each give a bouquet to their teachers.
27 ÷ 3 = 9
Each teacher got 9 flowers.
Question 5.
Which equation describes the situation in problem 4 above?
27 + 3 = n
3 × n = 27
n + 3 = 27
27 × 3 = n
Answer:
27 ÷ 3 = 9
27 ÷ 3 = n
3 × n = 27
Option B is the correct answer.
Question 6.
CHALLENGE Terry had 14 tulips and twice as many daffodils. How many flowers did Terry have in all?
Answer:
Given,
Terry had 14 tulips and twice as many daffodils.
14 × 3 = 42
Thus Terry have 42 flowers.