Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key

The solutions to Bridges in Mathematics Grade 3 Student Book Answer Key Unit 3 Module 2 can help students to clear their doubts quickly.

Bridges in Mathematics Grade 3 Student Book Answer Key Unit 3 Module 2

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Session 1 Answer Key

Strategy Match 4

Question 1.
Three students solved a problem using the different strategies shown below.

  • Fill in the blanks for each strategy.
  • Match the students’ work below to the strategies in the table.

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 1
Answer:
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-1
Number of Points Molly Scored = 82
Number of Points Sue Scored = 47
Strategy A
Take Away to a friendly number, then take away a friendly number and adjust
= (77-47)+(80-77)+(82-80)
= 30+3+2
= 35
Strategy B
Take Away a friendly number and adjust
= 82-35
= 47
Strategy C
Difference Between Numbers
Number of Points Molly has than Sue = 82 – 47
= 35

Question 2.
Use the number line below to subtract 76 – 39.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 2
Answer:
Given 76 and 39 are two numbers.
When 39 is subtracted from 76 it generates the value 37 on the number line as shown below.
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-2

Strategy Match 5

Three students solved problems 91 – 57. All the students used a number line, but each student solved the problem differently. Match the students’ work below to the strategies in the table.

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 3

Question 1.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 4
Answer:
Strategy A: Remove(Take Away) 57 from 91
= 91 – 57
= 34

Question 2.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 5
Answer:
Strategy B: Find the distance between numbers
= (60-57)+(90-60)+(91-90)
= 3+30+1
= 34

Question 3.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 6
Answer:
Strategy C
Constant Difference – shift the numbers along the line by the same distance
= (91+3)-(57+3)
= 94-60
= 34

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Session 3 Answer Key

Strategy Match 6

Three students solved the problem 71 – 38. All the students used a number line, but each student solved the problem differently.

  • Fill in the blanks for each strategy.
  • Match the students’ work below to the strategies in the table.

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 7

Question 1.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 8
Answer:
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-8
Distance between 33 and 71
= (71-41)+(41-40)+(40-33)
= 30+1+7
=38

Question 2.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 9
Answer:
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-9
Subtract 38 from 71
= 71-38
= 33

Question 3.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 10
Answer:
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-10
Add 2 to each number to make the sum simple
38+2 = 40, 71+2 = 73
71-38=73-40 = 33

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Session 4 Answer Key

Strategy Match 7

Three students solved problems 185 – 148. All the students used a number line, but each student solved the problem differently.

  • Fill in the blanks for each strategy.
  • Match the students’ work below to the strategies in the table.

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 11

Question 1.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 12
Answer:
Strategy: (184-100)+(85-40)+(45-8)
= 84+45+37
=148
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-12

Question 2.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 13
Answer:
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-13

Question 3.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 14
Answer:
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key-14
Remove 148 from 185 i.e. 185-148 = 37

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Session 5 Answer Key

Using the Number Line to Find Differences

Use the number lines to solve each problem below.

ex Veronica has $76. She wants to buy a bike that costs $162. How much more money does she need?

Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 15
She needs $86 more.

Question 1.
Clive and his family are driving to the beach. They will drive 136 miles total. So far, they have driven 84 miles. How much farther do they have to go? Show your work. Write your answer in the space below.
They have ___ more miles to go.
Answer:
The number of miles Clive and his family is driving to the beach in total is 136 miles
The distance they drove so far was 84 miles
The distance they need to go = total distance to the beach – the distance they drove
= 136-84
= 52
Therefore, they need to drive 52 more miles to reach the beach.
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key.Question_1

Question 2.
Shanice is reading a book that is 143 pages long. So far, she has read 56 pages. How many more pages does she have to read? Show your work. Write your answer in the space below.
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 16
Bridges in Mathematics Grade 3 Student Book Unit 3 Module 2 Answer Key 17
she has ___ pages left to read.
Answer:
The number of Pages in the book Shanice is reading is 143
The number of Pages she read so far is 56
Number of Pages she has to read further = 143 – 56
= 87
Therefore, Shanice has to read 87.
Bridges-in-Mathematics-Grade-3-Student-Book-Unit-3-Module-2-Answer-Key.Question_2

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