The solutions to Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 5 Module 4 can help students to clear their doubts quickly.
Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 5 Module 4
Bridges in Mathematics Grade 3 Home Connections Unit 5 Module 4 Session 1 Answer Key
Division & Fraction Review
Question 1.
Complete the division facts. They may help you with the next problem.
20 ÷ 4 = ______________
18 ÷ 3 = _____________
15 ÷ 3 = _____________
16 ÷ 4 = ______________
16 ÷ 2 = _____________
20 ÷ 5 = _______________
Answer:
20 ÷ 4 = 5
18 ÷ 3 = 6
15 ÷ 3 = 5
16 ÷ 4 = 4
16 ÷ 2 = 8
20 ÷ 5 = 4
Question 2.
Divide each set into equal groups. Shade in some circles as directed.
ex: Shade in \(\frac{1}{4}\) of the circles.
a. Shade in \(\frac{1}{3}\) of the circles.
Hint: Divide the set into 3 equal groups first.
Answer:
b. Shade in \(\frac{1}{2}\) of the circles.
Hint: Divide the set into 2 equal groups first.
Answer:
c. Shade in \(\frac{2}{3}\) of the circles.
Hint: Divide the set into 3 equal groups first.
Answer:
d.Shade in \(\frac{2}{4}\) of the circles.
Hint: Divide the set into 4 equal groups first.
Answer:
e. CHALLENGE Shade in \(\frac{3}{5}\) of the circles.
Hint: Divide the set into 5 equal groups first.
Answer:
Question 3.
a. Find two fractions above that are equal. Write them here:
_________ = ______________
Answer: \(\frac{1}{2}\) = \(\frac{2}{4}\)
b. How do you know these fractions are equal?
Answer: They are both equal to 8 out of 16 circles.
Question 4.
Mark and label each of these fractions on the number line: \(\frac{1}{2}\), 1\(\frac{1}{4}\), 1\(\frac{1}{3}\), 1\(\frac{3}{4}\).
Answer:
Question 5.
David, Mary, Claire, and Mark were picking strawberries in their grandparents’ garden. They had each picked the same number of strawberries when their grandma gave everyone 2 more strawberries. Now the 4 kids had 36 strawberries in all.
a. How many strawberries did each child have before Grandma gave them more? Show your work.
Answer:
Given,
David, Mary, Claire, and Mark were picking strawberries in their grandparents’ garden.
They had each picked the same number of strawberries when their grandma gave everyone 2 more strawberries. Now the 4 kids had 36 strawberries in all.
36 ÷ 4 = 9
9 – 2 = 7 strawberries
b. Mark the two equations below that could help you solve the problem.
(s + 2) × 4 = 36
2 × 4 + s = 36
36 – (2 × 4) = s
(36 ÷ 4) – 2 = s
Answer: (36 ÷ 4) – 2 = s
Question 6.
CHALLENGE The next day the kids picked 124 strawberries in all. They gave \(\frac{1}{4}\) of the strawberries to their neighbor, and their mother used \(\frac{2}{4}\) of the strawberries in a pie. The rest of the strawberries were saved for snacks.
a. How many strawberries went into the pie? Show your work.
Answer:
The next day the kids picked 124 strawberries in all.
their mother used \(\frac{2}{4}\) of the strawberries in a pie.
124 × \(\frac{2}{4}\) = 62 strawberries
b. How many strawberries did the family have for snacking on? Show your work.
Answer:
The next day the kids picked 124 strawberries in all.
They gave \(\frac{1}{4}\) of the strawberries to their neighbor
124 × \(\frac{1}{4}\) = 31 strawberries
Bridges in Mathematics Grade 3 Home Connections Unit 5 Module 4 Session 3 Answer Key
Unit 5 Review
Question 1.
Complete the multiplication facts.
Answer:
Question 2.
Solve the division facts. (Hint: Use the multiplication facts above to help.)
16 ÷ 4 = ______________
28 ÷ 4 = ______________
45 ÷ 5 = ______________
30 ÷ 5 = ______________
18 ÷ 3 = ______________
24 ÷ 3 = ______________
14 ÷ 2 = ______________
70 ÷ 10 = ______________
Answer:
16 ÷ 4 = 4
28 ÷ 4 = 7
45 ÷ 5 = 9
30 ÷ 5 = 6
18 ÷ 3 = 6
24 ÷ 3 = 8
14 ÷ 2 = 7
70 ÷ 10 = 7
Question 3.
Fill in the missing number in each fact. Then write a related division equation.
ex: 4 × 5 = 20 20 ÷ 5 = 4
a. _____________ × 3 = 21 _____________ ÷ _____________ = _____________
Answer:
7 × 3 = 21
21 ÷ 3 = 7
b. 5 × _____________ = 25 _____________ ÷ _____________ = _____________
Answer:
5 × 5 = 25
25 ÷ 5 = 5
c. _____________ × 7 = 14 _____________ ÷ _____________ = _____________
Answer:
2 × 7 = 14
14 ÷ 2 = 7
Question 4.
Write the answer to each equation below, and then write a story problem to match.
6 × 4 = _________________
30 ÷ 3 = ________________
Answer:
The pet store has 6 puppies. Each puppy drinks 4 cups of water every day. How much water do all 6 of the puppies drink in one day?
6 × 4 = 24
The pet store just got 30 new turtles. Elena is putting the turtles into terrariums. She puts 3 turtles in each terrarium. How many terrariums does she use?
30 ÷ 3 = 10
Question 5.
Solve each of the story problems below. Use another piece of paper if you need more room. Use numbers, labeled sketches, or words to show your thinking. Then write an equation to represent the problem and the answer.
a. The pet store just got 32 new turtles. Elena is putting the turtles into terrariums. She puts 4 turtles in each terrarium. How many terrariums does she use?
My equation: ________________
Answer:
Given,
The pet store just got 32 new turtles. Elena is putting the turtles into terrariums. She puts 4 turtles in each terrarium.
32 ÷ 4 = 8 terrariums
b. The pet store has 9 puppies. Each puppy drinks 6 cups of water every day. How much water do all 9 of the puppies drink in one day?
My equation: _________________
Answer:
Given,
The pet store has 9 puppies. Each puppy drinks 6 cups of water every day.
9 × 6 = 54 cups
Question 6.
The rectangles below have already been marked off in square units. Record the dimensions of each and then find the area. Write two equations to show how you found the area of each.
ex:
Area = 18 square units
Equations:
9 + 9 = 18
2 × 9 = 18
a.
Area = _____________ square units
Equations: ________________
Answer:
l = 6
w = 3
Area = 6 × 3 = 18
A = 18 square units
Equations: 3 × 6 = 18
6 + 6 + 6 = 18
b.
Area = _____________ square units
Equations: ________________
Answer:
Area = 4 × 5 = 20 square units
Equations: 5 + 5 + 5 + 5 = 20
Bridges in Mathematics Grade 3 Home Connections Unit 5 Module 4 Session 5 Answer Key
Playing with Area
Question 1.
Label the dimensions and area of each rectangle. Write two (or more) different equations to show how someone could find the area.
ex:
Area = 12 square units
Equations:
3 + 3 + 3 + 3 = 12
4 + 4 + 4 = 12
3 × 4 = 12
(3 × 2) + (3 × 2) = 12
a.
Area = _____________ square units
Equations: _______________
Answer:
Area = 18 square units
Equations:
3 × 6 = 18
6 + 6 + 6 = 18
b.
Area = _____________ square units
Equations: _______________
Answer:
Area = 5 × 8 = 40 square units
Equations:
10 + 10 + 10 + 10 = 40
Question 2.
Fill in the missing number in each fact. Then write a related division equation.
ex: 3 × 6 = 18 18 ÷ 3 = 6
a. ___________ × 6 = 48 _____________ ÷ _____________ = _____________
Answer:
8 × 6 = 48
48 ÷ 6 = 8
b. 3 × ______________ = 24 _____________ ÷ _____________ = _____________
Answer:
3 × 8 = 24
24 ÷ 8 = 3
c. 4 × _______________ = 28 _____________ ÷ _____________ = _____________
Answer:
4 × 7 = 28
28 ÷ 7 = 4
d. _____________ × 9 = 45 _____________ ÷ _____________ = _____________
Answer:
5 × 9 = 45
45 ÷ 9 = 5
e. 9 × _____________ = 90 _____________ ÷ _____________ = _____________
Answer:
9 × 10 = 90
90 ÷ 10 = 9
f. 8 × _____________ = 32 _____________ ÷ _____________ = _____________
Answer:
8 × 4 = 32
32 ÷ 4 = 8
Question 3.
Frank bought a rug for his room. It is 5 feet by 3 feet. What is the total area of the rug in square feet? Use labeled sketches, numbers, or words to solve this problem. Show all your work.
Area = _______________ square feet
Answer:
Given,
Frank bought a rug for his room. It is 5 feet by 3 feet.
5 × 3 = 15 square feet
Question 4.
The tumbling mats in the gym are each 10 feet by 8 feet. Miranda pushed 2 of the mats together so she would have enough room to do her routines. Use the sketch below to help find the total area of the 2 mats in square feet. Show your work.
Area = _____________ square feet
Answer:
The tumbling mats in the gym are each 10 feet by 8 feet.
10 × 8 = 80 square feet
Miranda pushed 2 of the mats together so she would have enough room to do her routines.
80 + 80 = 160 square feet
Question 5.
CHALLENGE Andrea got some free carpet squares at a carpet store. Each carpet square has an area of 1 square foot. She got enough blue squares to cover a space on her bedroom floor that is 2 feet by 8 feet. She got enough red squares to cover another space on her bedroom floor that is 5 feet by 8 feet.
a. How many total square feet can be covered if Andrea puts these carpet squares together? Show your work. Use another piece of paper if you need more room.
Area = _____________ square feet
Answer:
Given,
She got enough blue squares to cover a space on her bedroom floor that is 2 feet by 8 feet.
2 × 8 = 16 square feet
She got enough red squares to cover another space on her bedroom floor that is 5 feet by 8 feet.
5 × 8 = 40 square feet
16 + 40 = 56 square feet
Area = 56 square feet
b. There are two equations below you could use to help solve this problem. Mark both of them.
(2 + 8) × (5 + 8) = a
(2 × 8) + (5 × 8) = a
(2 + 5) + 8 = a
(2 + 5) × 8 = a
Answer:
(2 × 8) + (5 × 8) = a
Option B is the correct answer.