The solutions to Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 5 Module 3 can help students to clear their doubts quickly.
Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 5 Module 3
Bridges in Mathematics Grade 3 Home Connections Unit 5 Module 3 Session 1 Answer Key
More Number Puzzles
Question 1.
Draw a line from each expression on the left to the equivalent expression on the right.
Answer:
Question 2.
Write an equal (=), greater than (>), or equation true. less than (<) sign in the boxes to make each
ex: 2 × 5 < 3 × 4
a. 12 ÷ 4 ____________ 3 × 1
Answer: =
12 ÷ 4 = 3
3 × 1 = 3
3 = 3
12 ÷ 4 = 3 × 1
b. 5 × 1 ______________ 12 ÷ 3
Answer: >
5 × 1 = 5
12 ÷ 3 = 4
5 > 4
5 × 1 > 12 ÷ 3
c. 8 × 2 ______________ 4 × 4
Answer:
8 × 2 = 16
4 × 4 = 16
8 × 2 = 4 × 4
d. 25 ÷ 5 ______________ 4 × 2
Answer: <
25 ÷ 5 = 5
4 × 2 = 8
5 < 8
25 ÷ 5 < 4 × 2
e. 8 × 4 _______________ 12 × 2
Answer:
8 × 4 = 32
12 × 2 = 24
32 > 24
8 × 4 > 12 × 2
f. 20 ÷ 2 _______________ 3 × 5
Answer:
20 ÷ 2 =10
3 × 5 = 15
10 < 15
20 ÷ 2 < 3 × 5
Question 3.
Dani says you can show the solution to 2 × 5 × 3 with one equation:
2 × 5 = 10 × 3 = 30
Maya says you have to use two equations:
2 × 5 = 10 and 10 × 3 = 30
a. Which student is correct?
Answer:
Maya says you have to use two equations:
2 × 5 = 10 and 10 × 3 = 30
Maya is correct.
b. Explain your answer.
Answer: Maya is correct because all expressions are joined by an equal sign and must be equal.
2 × 5 ≠ 10 × 3
2 × 5 ≠ 30
Question 4.
Andy had 30 marbles. He gave half of his marbles to his 3 cousins. His 3 cousins divided the marbles equally.
Jan had 48 marbles. She gave half of her marbles to her 4 cousins. Her 4 cousins divided the marbles equally.
a. Whose cousins got more marbles, Andy’s cousins or Jan’s cousins?
Answer: Jan’s Cousins got more marbles.
b. Use labeled sketches, numbers, or words to prove your answer.
Answer:
Andy:
30 ÷ 2 = 15
15 ÷ 3 = 15
Jan:
48 ÷ 2 = 24
24 ÷ 4 = 6
Question 5.
Tim went to the pet store. He saw 3 cages of mice. There were 4 mice in each cage. He also saw 2 cages of hamsters. There were 6 hamsters in each cage. How many animals did Tim see in all?
a. Circle the expression that best represents this problem.
(3 × 2) + (6 × 4) = a
(3 × 4) + (2 × 6) = a
(4 × 1) + (2 × 3) = a
Answer:
(3 × 4) + (2 × 6) = a
b. Then find the answer. Show your work.
Answer:
(3 × 4) + (2 × 6) = a
12 + 12 = a
a = 24 animals
Question 6.
CHALLENGE Use the digits 0-9 each just one time. Write them in the boxes below. Make each multiplication problem correct.
Answer:
Bridges in Mathematics Grade 3 Home Connections Unit 5 Module 3 Session 3 Answer Key
More Division Practice
Question 1.
Fill in the blanks.
a. 4 × ___________ = 24
24 ÷ 4 = ______________
Answer:
4 × 6 = 24
24 ÷ 4 = 6
b. 36 ÷ 9 = ______________
9 × ___________ = 36
Answer:
36 ÷ 9 = 4
9 × 4 = 36
c. ____________ × 5 = 35
35 ÷ ______________ = 5
Answer:
7 × 5 = 35
35 ÷ 7 = 5
d. 21 ÷ _____________ = 7
___________ × 7 = 21
Answer:
21 ÷ 3 = 7
3 × 7 = 21
e. 4 × 3 = ______________
___________ ÷ 4 = 3
Answer:
4 × 3 = 12
12 ÷ 4 = 3
f. ____________ = 9 × 6
___________ ÷ 9 = 6
Answer:
54 = 9 × 6
54 ÷ 9 = 6
g. 403 + 296 = ______________
Answer:
403
296
699
So, the sum of 403 and 296 is 699.
h. 403 – 296 = ______________
Answer:
403 – 296 = 107
By subtracting 403 and 296 we get 107.
Question 2.
Solve the story problems below. Show your thinking in words, numbers, or sketches for each one. Be sure to label your answers with the correct units.
a. Mr. Bee bought 3 jars of honey, which weighed a total of 24 ounces. If all the jars weighed the same amount, how much did each jar weigh?
Each jar weighed _____________.
Answer:
Given,
Mr. Bee bought 3 jars of honey, which weighed a total of 24 ounces.
24 ÷ 3 = 8
Each jar weighed 8 ounces.
b. Mrs. Bee also bought 24 ounces of honey. She put 3 ounces of honey into several small jars. How many jars did she use?
Mrs. Bee used _______________.
Answer:
Given,
Mrs. Bee also bought 24 ounces of honey. She put 3 ounces of honey into several small jars.
24 ÷ 3 = 8
Mrs. Bee used 8 jars.
Question 3.
Compare problems 2a and 2b. How are they alike? How are they different?
Answer:
The first problem is about weight and the second is about how many jars.
They are both division problems.
Question 4.
Mrs. Moth picked 8 flowers. Each flower had 6 petals.
a. How many petals are on the flowers that Mrs. Moth picked? Show your work.
Answer:
Given,
Mrs. Moth picked 8 flowers. Each flower had 6 petals.
8 × 6 = 48 petals.
b. Write an equation that describes problem 4a. _________________
Answer: 8 × 6 = 48
Question 5.
CHALLENGE Later, Mrs. Moth picked 24 more flowers. Six of them each had 9 petals, 7 of them each had 8 petals, 5 of them each had 3 petals, and the rest each had 10 petals.
a. How many flowers had 10 petals? Show your work.
Answer:
Given,
Mrs. Moth picked 24 more flowers.
Six of them each had 9 petals, 7 of them each had 8 petals, 5 of them each had 3 petals, and the rest each had 10 petals.
24 – 6 – 7 – 5 = 6 flowers had 10 petals
b. How many petals were on all 24 of the flowers that Mrs. Moth picked? Show your work.
Answer:
6 × 9 = 54
7 × 8 = 56
5 × 3 = 15
6 × 10 = 60
54 + 56 + 15 + 60 = 185 petals.