Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key

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Bridges in Mathematics Grade 1 Home Connections Answer Key Unit 3 Module 2

Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 2 Answer Key

Sixes, Crayons & Coins

Question 1.
Write an equation to match each cube train.
ex
3 + 3 = 6
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 1

a.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 2
Answer:
Equation:
2 + 2 + 2 = 6.
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Sixes, Crayons & Coins-1a

Explanation:
Number of cubes shaded = 2.
Matching the cube train:
=> 2 + 2 + 2 = 6.

b.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 3
Answer:
Equation:
1 + 1 + 1 + 1 + 1 + 1 = 6.
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Sixes, Crayons & Coins-1b

Explanation:
Number of cubes shaded = 1.
Matching the cube train:
1 + 1 + 1 + 1 + 1 + 1
= 6.

c.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 4
Answer:
Equation:
2 + 2 + 1 + 1 = 6.
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Sixes, Crayons & Coins-1c

Explanation:
Number of cubes shaded = 2 + 2 = 4..
Matching the cube train:
2 + 2 + 1 + 1
= 4 + 1 + 1
= 6.

Question 2.
Color in the train to match each equation.

ex 4 + 2 = 6
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 5

a.
3 + 2 + 1 = 6
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 6
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Sixes, Crayons & Coins-2a

Explanation:
Equation: 3 + 2 + 1 = 6.
Matching the cube train.

b. 1 + 5 = 6
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 7
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Sixes, Crayons & Coins-2b

Explanation:
Equation: 1 + 5 = 6.
Matching the cube train.

c. 1 + 4 + 1 = 6
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 8
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Sixes, Crayons & Coins-2c

Explanation:
Equation: 1 + 4 + 1 = 6.
Matching the cube train.

Question 3.
Subtract.
6 – 0 = ____ 5 – 2 = _____ 5 – 5 = _____ 6 – 2 = ____
6 – 4 = ____ 6 – 1 = _____ 6 – 3 = _____ 5 – 4 = ____
6 – 5 = ____ 5 – 3 = _____ 6 – 6 = _____ 5 – 1 = ____
Answer:
6 – 0 = 6.                  5 – 2 = 3.                 5 – 5 = 0.               6 – 2 = 4.
6 – 4 = 2.               6 – 1 = 5.             6 – 3 = 3.               5 – 4 = 1.
6 – 5 = 1.               5 – 3 = 2.              6 – 6 = 0.              5 – 1 = 4.

Explanation:
Subtraction:
6 – 0 = 6.
5 – 2 = 3.
5 – 5 = 0.
6 – 2 = 4.
6 – 4 = 2.
6 – 1 = 5.
6 – 3 = 3.
5 – 4 = 1.
6 – 5 = 1.
5 – 3 = 2.
6 – 6 = 0.
5 – 1 = 4.

Question 4.
Fill in the missing number.
2 + _____ = 6 _____ + 5 = 6 6 = 3 + _____ 6 = 4 + _____
3 + _____ = 6 _____ + 0 = 6 6 = 2 + _____ 6 = 6 + _____
Answer:
Equations:
2 + 4 = 6.            1 + 5 = 6.               6 = 3 + 3.           6 = 4 + 2.
3 + 3 = 6.             6 + 0 = 6.               6 = 2 + 4.           6 = 6 + 0.

Explanation:
Missing number:
2 + ?? = 6
=> ?? = 6 – 2
=> ?? = 4.
?? + 5 = 6
=> ?? = 6 – 5
=> ?? = 1.
6 = 3 + ??
=> 6 – 3 = ??
=> 3 = ??
6 = 4 + ??
=> 6 – 4 = ??
=> 2 = ??
3 + ?? = 6
=> ?? = 6 – 3
=> ?? = 3.
?? + 0 = 6
=> ?? = 6 – 0
=> ?? = 6.
6 = 2 + ??
=> 6 – 2 = ??
=> 4 = ??
6 = 6 + ??
=> 6 – 6 = ??
=> 0 = ??

Question 5.
John had some crayons. He gave 5 to Jen. Now he has 7 crayons left. How many crayons did John have to start with? Show your work.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 9
John started out with ___ crayons.
Answer:
Number of crayons he started with = 12.
John started out with 12 crayons.

Explanation:
Number of crayons John gave to Jen = 5.
Number of crayons he has left now = 7.
Number of crayons he started with = Number of crayons John gave to Jen + Number of crayons he has left now
= 5 + 7
= 12.

Question 6.
CHALLENGE Here are three clues:

  • Kendra has 5 coins.
  • She has 354.
  • She has only nickels and dimes.

How many nickels does Kendra have? How many dimes does Kendra have? Show your work.
Kendra has ____ nickels. Kendra has ____ dimes.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 10
Answer:
Number of nickels and dimes she has each = 177.
Kendra has 177 nickels.
Kendra has 177dimes.

Explanation:
Number of coins Kendra has = 5.
Amount of money She has = 354.
She has only nickels and dimes.
=> Number of nickels and dimes she has each = Amount of money She has ÷ 2
= 354 ÷ 2
= 177.

Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key

Ten & Twenty

How many more to make 10?

Question 1.
How many more beads do you need to make 10 in all? Write the number in the box at the right of each bead string.

ex
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 11

a.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 12
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-1a

Explanation:
Number of beads given = 5.
Total number of beads = 10.
Number of beads needed more = Total number of beads – Number of beads given
= 10 – 5
= 5.

b.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 13
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-1b

Explanation:
Number of beads given = 9.
Total number of beads = 10.
Number of beads needed more = Total number of beads – Number of beads given
= 10 – 9
= 1.

c.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 14
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-1c

Explanation:
Number of beads given = 6.
Total number of beads = 10.
Number of beads needed more = Total number of beads – Number of beads given
= 10 – 6
= 4.

d.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 15
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-1d

Explanation:
Number of beads given = 2.
Total number of beads = 10.
Number of beads needed more = Total number of beads – Number of beads given
= 10 – 2
= 8.

e.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 16
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-1e

Explanation:
Number of beads given = 7.
Total number of beads = 10.
Number of beads needed more = Total number of beads – Number of beads given
= 10 – 7
= 3.

Question 2.
Fill in the box to complete each equation.

6 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17 = 10 4 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17 = 10 7 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17 = 10 3 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17 = 10
10 = 8 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17 10 = 2 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17 10 = 5 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17 10 = 9 + Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 17
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-2

Explanation:
Equations:
6 + ?? = 10.
=>?? = 10 – 6
=> ?? = 4.
4 + ?? = 10.
=> ?? = 10 – 4
=> ?? = 6.
7 + ?? = 10.
=> ?? = 10 – 7
=> ?? = 3.
3 + ?? = 10.
=> ?? = 10 – 3
=> ?? = 7.
10 = 8 + ??
=> 10 – 8 = ??
=> 2 = ??
10 = 2 + ??
=> 10 – 2 = ??
=> 8 = ??
10 = 5 + ??
=> 10 – 5 = ??
=> 5 = ??
10 = 9 + ??
=> 10 – 9 = ??
=> 1 = ??

Question 3.
Are these equations correct? Circle yes or no to show.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 18
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-3

Explanation:
Equations:
5 + 4 = 9 not 10. – NO
10 = 1 + 9. – YES
2 + 3 + 5 = 5 + 5 = 10 . YES
5 + 5 = 10. – YES
7 + 2 = 9 not 10. – NO
1 + 2 + 3 + 4 = 3 + 3 + 4 = 6 + 4 = 10. – YES

Question 4.
How many more beads do you need to make 20 in all? Write the number in the box at the right of each pair of bead strings.

a.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 19
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-4a

Explanation:
Number of beads given = 10 + 5 = 15.
Total number of beads = 20.
Number of beads needed more = Total number of beads – Number of beads given
= 20 – 15
= 5.

b.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 20
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-4b

Explanation:
Number of beads given = 10 + 8 = 18.
Total number of beads = 20.
Number of beads needed more = Total number of beads – Number of beads given
= 20 – 18
= 2.

c.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 21
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-4c

Explanation:
Number of beads given = 5 + 5 = 10.
Total number of beads = 20.
Number of beads needed more = Total number of beads – Number of beads given
= 20 – 10
= 10.

d.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 22
Answer:
Bridges-in-Mathematics-Grade-1-Home-Connections-Answer-Key-Unit-3-Module-1-Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Session 5 Answer Key-4d

Explanation:
Number of beads given = 10 + 2 = 12.
Total number of beads = 20.
Number of beads needed more = Total number of beads – Number of beads given
= 20 – 12
= 8.

Question 5.
Dan had 10 mini racer cars. He got 6 more mini racer cars for his birthday. Then his brother gave him 4 more mini racer cars.

a. How many mini racer cars does Dan have in all? Show your work.
Answer:
Total number of mini racer cars  he has now = 20.

Explanation:
Numbers of mini racer cars Dan had = 10.
Numbers of mini racer cars Dan got more for his birthday = 6.
Numbers of mini racer cars more his brother gave him = 4.
Total number of mini racer cars  he has now = Numbers of mini racer cars Dan had + Numbers of mini racer cars Dan got more for his birthday + Numbers of mini racer cars more his brother gave him
= 10 + 6 + 4
= 16 + 4
= 20.

b. Dan has ____ mini racer cars in all.
Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 2 Answer Key 23
Answer:
Total number of mini racer cars he has in all =20.
Dan has 20 mini racer cars in all.

Explanation:
Numbers of mini racer cars Dan had = 10.
Numbers of mini racer cars Dan got more for his birthday = 6.
Numbers of mini racer cars more his brother gave him = 4.
Total number of mini racer cars he has in all = Numbers of mini racer cars Dan had + Numbers of mini racer cars Dan got more for his birthday + Numbers of mini racer cars more his brother gave him
= 10 + 6 + 4
= 16 + 4
= 20.

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