Practicing the Bridges in Mathematics Grade 2 Home Connection Answer Key Unit 4 Module 1 will help students analyze their knowledge of concepts.
Bridges in Mathematics Grade 2 Home Connections Answer Key Unit 4 Module 1
Bridges in Mathematics Grade 2 Home Connections Unit 4 Module 1 Session 1 Answer Key
Pencil Puppy & Pal
Question 1.
Fill in the bubble next to the correct answer to each question.
a. The number on Pencil Puppy’s dog tag has a 6 in the tens place. It has a 4 in the ones place. What is the number on her tag?
46
64
14
67
Answer:
Given,
The number on Pencil Puppy’s dog tag has a 6 in the tens place.
It has a 4 in the ones place.
6 × 10 = 60
4 × 1 = 4
60 + 4 = 64
Option B is the correct answer.
b. The number on Pal’s dog tag has a 7 in the tens place. It has a 3 in the ones place. What is the number on Pal’s tag?
17
37
30
73
Answer:
Given,
The number on Pal’s dog tag has a 7 in the tens place.
It has a 3 in the ones place.
7 × 10 = 70
3 × 1 = 3
70 + 3 = 73
Option D is the correct answer.
Question 2.
Fill in the correct answer.
a. Pencil Puppy’s house number has a 3 in the tens place.
It has a 5 in the ones place.
What is Pencil Puppy’s house number? _______
Answer:
Given,
Pencil Puppy’s house number has a 3 in the tens place.
3 × 10 = 30
It has a 5 in the ones place.
5 × 1 = 5
30 + 5 = 35
Pencil Puppy’s house number is 35.
b. Pal’s house number has a 7 in the ones place.
It has a 4 in the tens place.
What is Pal’s house number? _______
Answer:
Given,
Pal’s house number has a 7 in the ones place.
7 × 1 = 7
It has a 4 in the tens place.
4 × 10 = 40
40 + 7 = 47
Pal’s house number is 47.
Question 3.
Pencil Puppy has 43 pencils in her house. Pal has 29 pencils in his house. How many pencils do they have in all? Use numbers, pictures, and/or words to solve the problem and explain your answer.
Pencil Puppy and Pal have ____ pencils in all.
Answer:
Pencil Puppy has 43 pencils in her house.
Pal has 29 pencils in his house.
43 + 29 = 72
Pencil Puppy and Pal have 72 pencils in all.
Question 4.
Add. Use the pictures of base ten pieces to help. The second set of pieces for each problem is hidden, so you will have to draw them or imagine them.
a.
Answer:
b.
Answer:
Question 5.
When Pencil Puppy does 2-digit addition, she adds the tens first. Next, she adds the ones. Then she adds the two numbers to get the answer. Try her strategy.
ex
a.
Answer:
4 tens + 3 tens = 7 tens
8 ones + 4 ones = 12 ones
40 + 30 = 70
8 + 4 = 12
70 + 12 = 84
b.
Answer:
5 tens + 2 tens = 7 tens
8 ones + 8 ones = 16 ones = 1 ten 6 ones
c.
Answer:
2 tens + 6 tens = 8 tens
5 ones + 9 ones = 14 ones = 1 ten 4 ones
d.
Answer:
3 tens + 5 tens = 8 tens
4 ones + 9 ones = 13 ones = 1 ten 3 ones
e.
Answer:
4 tens + 4 tens = 8 tens
5 ones + 6 ones = 11 ones = 1 ten 1 one
Bridges in Mathematics Grade 2 Home Connections Unit 4 Module 1 Session 3 Answer Key
Subtraction & Graphing Practice
DJ Hopper makes hops on the number line to solve 2-digit subtraction problems. Here’s how he solved 53 – 26:
- Start at 26.
- Hop up to 30.
- Now hop up to 50.
- Then hop up to 53 and add up all your hops. That tells how far it is from 26 to 53.
Question 1.
Try DJ’s number line strategy to solve these subtraction problems.
a. 45 – 17
______ so 45 – 17 = ____
Answer:
- Start at 17.
- Hop up to 20.
- Now hop up to 40.
- Then hop up to 45 and add up all your hops. That tells how far it is from 17 to 45.
45 – 17 = 28
b. 54 – 25
______ so 54 – 25 = _______
Answer:
- Start at 25.
- Hop up to 30.
- Now hop up to 50.
- Then hop up to 54 and add up all your hops. That tells how far it is from 25 to 54.
54 – 25 = 29
c. 57 – 18
______ so 57 – 18 = _______
Answer:
- Start at 18.
- Hop up to 20.
- Now hop up to 30.
- Then hop up to 50 and add up all your hops. That tells how far it is from 18 to 57.
57 – 18 = 39
Favorite Pets
Question 2.
The second graders in Ms. Nelson’s class made a graph with pictures to show their favorite pets. Each student put one picture on the graph to show his or her favorite pet. Use their graph to help answer the questions below.
a. Which pet did most kids like the best? _______
Answer:
Most kids like dogs.
b. How many more kids like dogs than fish the best?__________
Answer:
12 kids like dogs.
5 kids like fish.
12 – 5 = 7
c. How many fewer kids like birds than cats the best? _______
Answer:
8 kids like cats.
2 kids like birds
8 – 2 = 6
6 fewer kids like birds than cats the best
d. Write an equation to show how many kids put pictures on this graph.
Answer:
5 + 2 + 8 + 2 = 17
There are 17 pictures on the above graph.
Question 3.
The kids in Ms. Nelson’s class did a survey of all the second grades to find out about kids’ favorite pets. Use their chart to help answer the questions below.
a. How many more kids like fish than birds the best? Show your work.
Answer:
Number of kids like fish = 17
Number of kids like birds = 8
17 – 8 = 9
9 kids like fish than birds the best.
b. How many more kids like dogs than cats the best? Show your work.
Answer:
Number of kids like dogs = 62
Number of kids like cats = 45
62 – 45 = 17 kids
17 more kids like dogs than cats the best.
Bridges in Mathematics Grade 2 Home Connections Unit 4 Module 1 Session 5 Answer Key
Inchworm’s Garden & Fives Practice
Here is Little Inchworm’s Garden. Use the inch side of your ruler to measure the path between each part of the garden. Write your answers on the chart below.
Question 1-6.
Answer:
Inchworm’s Garden & Fives Practice
Question 7.
Fill in the missing numbers. Then color in the count-by-5s numbers, starting with 5
(5, 10, 15, 20, and so on).
Answer:
Question 8.
Find each sum.
5 + 5 = _____ 15 + 5 = _____ 21 + 5 = ______ 34 + 5 = ______
Answer:
5 + 5 = 10
By adding 5 and 5 we get 10
15 + 5 = 20
By adding 15 and 5 we get 20.
21 + 5 = 26
By adding 21 and 5 we get 26.
34 + 5 = 39
By adding 34 and 5 we get 39.
Question 9.
Find each difference.
20 – 5 = _____ 15 – 5 = _____ 35 – 5 = _____ 50 – 5 = _____
Answer:
20 – 5 = 15
By subtracting 5 from 20 we get 15.
15 – 5 = 10
By subtracting 5 from 15 we get 10.
35 – 5 = 30
By subtracting 5 from 35 we get 30.
50 – 5 = 45
By subtracting 5 from 50 we get 45.
Question 10.
Fill in the missing numbers on the number line below.
Answer:
Question 11.
What’s next in this skip-counting pattern?
1, 6, 11, 16, ___, ____, ____, ____
Answer:
6 – 1 = 5
11 – 6 = 5
16 – 11 = 5
16 + 5 = 21
21 + 5 = 26
26 + 5 = 31
31 + 5 = 36
1, 6, 11, 16, 21, 26, 31, 36