Practicing the Bridges in Mathematics Grade 2 Home Connection Answer Key Unit 1 Module 3 will help students analyze their knowledge of concepts.
Bridges in Mathematics Grade 2 Home Connections Answer Key Unit 1 Module 3
Bridges in Mathematics Grade 2 Home Connections Unit 1 Module 3 Session 1 Answer Key
Number Lines & Patterns
Question 1.
Trace each number and then practice writing it twice.
Answer: The given numbers writing practice table is below,
Explanation: Given the writing practice table with a number.
The numbers are from 10 to 19.
Now, we will trace each number and write twice for each number.
The writing practice number table is,
Question 2.
Fill in the missing numbers on each number line below.
a.
Answer: The given figure consists of numbers from 13 to 19. In between few numbers are missed. So, after fill the missing numbers the figure is as follows,
b.
Answer: The given figure consists of numbers from 15 to 45. In between the given range, a few numbers are missed the difference between each number is 5. So, after fill the missing numbers the figure is as follows,
c.
Answer: The given figure consists of numbers from 14 to 26. In between the given range, a few numbers are missed. The missed numbers are even because the difference between each number is 2. So, after filling in the missing numbers, the figure is as follows,
d.
Answer: The given figure consists of numbers from 1 to 13. In between few numbers are missed. The missed numbers are odd because the difference between each number is 1. So, after filling in the missing numbers the figure is as follows,
Question 3.
James had 13 baseball cards. He gave 6 to his brother. How many baseball cards does James have now? Show your work.
James has ____ baseball cards now.
Answer: James has 7 baseball cards now.
Explanation: Given the data,
James had 13 baseball cards.
He gave 6 to his brother.
Now, we will find out how many baseball cards James has now.
So, the values are 13, 6
i.e, 13 – 6
Hence, James has 7 baseball cards now.
Question 4.
CHALLENGE Mai threw 3 darts at the board. All 3 of them are stuck on the board. What are all the different scores she could get? Show your work.
Answer: The different scores she could get are 3, 4, 5, 6, 7, 8, 9, 10, and 12.
Explanation: As given in the question,
Mai threw 3 darts at the board.
All 3 of them are stuck on the board.
Now, we will find out all the different scores she could get.
If a dart hits the dartboard, the dart is either in a 1-point ring, a 2-point ring, or a 4-point ring.
It means each throw of the dart has three possible point outcomes.
So, the total possible outcomes are 3 x 3 x 3 = 27.
The 27 possible outputs are,
111 = 1 + 1 + 1 = 3,  211 = 2 + 1 + 1 = 4, 411 = 4 + 1 + 1 = 6
112 = 1 + 1 + 2 = 4,  212 = 2 + 1 + 2 = 5, 412 = 4 + 1 + 2 = 7
114 = 1 + 1 + 4 = 6,  214 = 2 + 1 + 4 = 7, 414 = 4 + 1 + 4 = 9
121 = 1 + 2 + 1 = 4,  211 = 2 + 1 + 1 = 4, 421 = 4 + 2 + 1 = 7
122 = 1 + 2 + 2 = 5,  222 = 2 + 2 + 2 = 6, 422 = 4 + 2 + 2 = 8
124 = 1 + 2 + 4 =7,   224 = 2 + 2 + 4 = 8, 424 = 4 + 2 + 4 = 10
141= 1 + 4 + 1 = 6, 241 = 2 + 4 + 1 = 7, 441 = 4 + 4 + 1 = 9
142 = 1 + 4 + 2 = 7, 242 = 2 + 4 + 2 = 8, 442 = 4 + 4 + 2 = 10
144 = 1 + 4 + 4 = 9, 244 = 2 + 4 + 4 = 10, 444 = 4 + 4 + 4 = 12
Hence, she could get different scores are 3, 4, 5, 6, 7, 8, 9, 10, and 12.
Bridges in Mathematics Grade 2 Home Connections Unit 1 Module 3 Session 3 Answer Key
Note to Families
To practice the 2s counting pattern and just have a little fun, work with your child to find and list some of the many things around your house that come in pairs. Then have your child complete the rest of the assignment and return it to school.
Question 1.
Search your home for things that come in pairs, like shoes and mittens. What else can you find? List some of your discoveries below.
Answer: In our home, the things that come in pairs are,
The pair consists of 2 things.
So, the pairs are a pair of shoes, a pair of glasses, a pair of mittens, a pair of sunglasses, a pair of earphones, a pair of clippers, a pair of shirts, a pair of earrings, a pair of gloves, a pair of scissors.
Question 2.
Think about a pair of mittens.
How many mittens are there in 1 pair? ________
How many mittens are there in 2 pairs? ________
How many mittens are there in 3 pairs? _______
Answer: The pair of mittens is,
1 pair has 2 mittens.
2 pairs has 2 x 2 = 4 mittens.
3 pairs has 3 x 2 = 6 mittens.
Question 3.
Fill in the missing numbers on the Mittens Chart below.
Answer: The missing numbers on the Mittens chart is below,
Explanation: Given the mittens chart with a few missing numbers.
Now, we will find out the missing numbers in the given charts.
We know that each pair has 2 mittens.
The missing numbers are,
3 pairs = 3 x 2 =Â 6 mittens.
4 pairs = 4 x 2 = 4 mittens.
5 pairs = 5 x 2 = 10 mittens.
6 pairs = 6 x 2 = 12 mittens.
7 pairs = 7 x 2 = 14 mittens.
8 pairs = 8 x 2 = 16 mittens.
9 pairs = 9 x 2 = 18 mittens.
10 pairs = 10 x 2 = 20 mittens.
20 pairs = 20 x 4 = 40 mittens.
30 pairs = 30 x 2 = 60 mittens.
100 pairs = 100 x 2 = 200 mittens.
So, the missing numbers are 3 pairs, 8 mittens, 5 pairs, 12 mittens, 14 mittens, 8 pairs, 18 mittens, 20 mittens, 40 mittens, 60 mittens, and 200 mittens.
Question 4.
Write the numbers from 1 to 30 in the grid below. Then color in just the even numbers, starting with 2.
Answer: The below grid consists of numbers from 1 to 30 and even numbers starting with 2 are colored red.
Question 5.
Solve these equations.
a.
4 + 2 = ____ 14 + 2 = ____ 24 + 2 = ____ 8 + 2 = ____
18 + 2 = ____ 28 + 2 = ____ 16 – 2 = ____ 26 – 2 = ____
10 – 2 = _____ 20 – 2 = _____ 30 – 2 = _____ 14 – 2 = _____
Answer: The equation values are,
4 + 2 =6,   14 + 2 =16,
24 + 2 = 26, 8 + 2 = 10
18 + 2 = 20, 28 + 2 = 30,
16 – 2 = 14,  26 – 2 = 24
10 – 2 = 8, 20 – 2 = 18,
30 – 2 = 28, 14 – 2 = 12.
Explanation: Given the equation,
Now, we will find the equation values.
The following are the equations,
(i) 4 + 2 = ?
Given the values are 4, 2
Now, we will find the sum value.
So, the values are 4, 2
The sum value is 6.
(ii) 14 + 2 = ?
Given the values are 14, 2
Now, we will find the sum value.
So, the values are 14, 2
After addition, the sum value is 16.
(iii) 24 + 2 = ?
Given the values are 24, 2
Now, we will find the sum value.
So, the values are 24, 2
Thus, the sum value is 26.
(iv) 8 + 2 = ?
Given the values are 8, 2
Now, we will find the sum value.
So, the values are 4, 2
Hence, the sum value is 10.
(v) 18 + 2 = ?
Given the values are 18, 2
Now, we will find the sum value.
So, the values are 18, 2
Therefore, the sum value is 20.
(vi) 28 + 2 = ?
Given the values are 28, 2
Now, we will find the sum value.
So, the values are 28, 2
Hence, the value is 30.
(vii) 16 – 2 =?
Given the values are 16, 2
Now, we will find the subtraction value.
So, the values are 16, 2
Hence, the final subtracted value is 14.
(viii) 26 – 2 =?
Given the values are 26, 2
Now, we will find the subtraction value.
So, the values are 26, 2
After subtraction, the final value is 24.
(ix) 10 – 2 =?
Given the values are 10, 2
Now, we will find the subtraction value.
So, the values are 10, 2
Hence, the final value is 8.
(x) 20 – 2 =?
Given the values are 20, 2
Now, we will find the subtraction value.
So, the values are 20, 2
Thus, the value is 18.
(xi) 30 – 2 =?
Given the values are 30, 2
Now, we will find the subtraction value.
So, the values are 30, 2
(xii) 14 – 2 =?
Given the values are 14, 2
Now, we will find the subtract value.
So, the values are 14, 2
Therefore, the values are 12.
b. CHALLENGE Sam says the answers to all of these problems are even. Do you agree with Sam? Why or why not?
Answer: Yes, sam says the answers to all of these problems are even. Because step by step, he answered all the questions.
Question 6.
Answer the questions about these insects.
Answer: The spots on the bugs is,
4 2-spotted ladybugs have 8 spots in all.
10 2-winged flies have 20 wings in all.
6 2-potted ladybugs have 12 spots in all.
20 2-winged flies have 40 wings in all.
Explanation: Given the figure, it consists of 2 spotted ladybugs and 2 winged files.
The 2 spotted ladybugs are 4, 6.
The 2 winged flies are 10, and 20.
Now, we will find out how many spots and wings there are in all.
So, the values are,
4 x 2 spotted ladybugs is 4 x 2 = 8 spots.
10 x 2 winged files is 10 x 2 = 20 wings.
6 x 2 spotted ladybugs is 6 x 2 = 12 spots.
20 x 2 winged flies is 20 x 2 = 40 wings.
Hence, the spots and wings are 8 spots, 20 wings, 12 spots, and 40 wings.
Bridges in Mathematics Grade 2 Home Connections Unit 1 Module 3 Session 5 Answer Key
Finding the Difference
Question 1.
Suzy Spider and Freddy Fly are playing another game of Battling Bugs. Fill in the sentence beside the strips to show the difference between their scores in each problem below. Write or complete a subtraction equation to match.
Answer: The difference between 5 and 4 is 1.
The difference between 7 and 7 is 0.
The difference between 6 and 2 is 4.
The difference between 10 and 5 is 5.
Explanation: Given the figure with some values.
Now, we will find each figure’s difference value.
So, the following are,
(a) The difference between 5 and 4 is,
i.e., 5 -4
Hence, the difference value is 0.
(b) The difference between 7 and 7 is,
i.e., 7 – 7
So, the difference value is 0.
(c) The difference value is 6 and 2 is,
i.e., 6 – 2
Thus, the difference value is 4.
(d) The difference between 10 and 5 is,
i.e., 10 – 5
Therefore, the difference value is 5.
Question 2.
Add up each bug’s points to find out who won the game.
Answer: The point of Suzy spider is 25.
The point of Freddy Fly is 30.
Explanation: As given in the question,
Some of the values of the Suzy spider and Freddy Fly bug are given.
Now, we will find the sum values of the bug.
The Suzy spider values are 6 + 5+ 7+ 2+ 5 = 25.
Next, the values of Freddy Fly are 3 + 4+ 7+ 6+ 10 = 30.
Hence, the points of Suzy spider and Freddy Fly is 25 and 30.
Question 3.
Which bug won? _______ By how many points? _______ Show your work.
Answer: The Freddy Fly bug won by 5 points more than the Sury spider.
Explanation: Based on the previous question answer,
The Freddy Fly bug won more points than the Suzy spider.
The point of Suzy spider is 25.
The point of Freddy Fly is 30.
Now, we will find the difference between the points then we get the won bug points.
So, the values are 30, and 25.
i.e, 30 – 25
Hence, the difference value is 5. Therefore Freddy Fly won 5 points more than Suzy spider.
Finding the Difference
You can use ten-strips to show the difference between two numbers. You can also use bars like this.
The difference between 8 and 5 is 3. 8 – 5 = 3
Question 4.
Label the white piece on each of the bar drawings below. Then fill in the sentence and write a subtraction equation to match.
ex
The difference between 10 and 5 is 5. 10 – 5 = 5
a.
The difference between ____ and ____ is ______. _______________
Answer: The difference between 7 and 2 is 5.
Explanation: Given the figure with values.
The figure consists of values 7, and 2.
Now, we will find the difference value.
So, the values are 7, 2
i.e., 7- 2
Hence, the difference between 7 and 2 is 5.
b.
The difference between ____ and ____ is ______. _______________
Answer: The difference between 9 and 3 is 6.
Explanation: Given the figure with values.
The figure consists of the values 9, and 3.
Now, we will find the difference value.
So, the values are 9, 3
i.e., 9 – 3
Therefore, the difference between 9 and 3 is 6.
c.
The difference between ____ and ____ is ______. _______________
Answer: The difference between 8 and 6 is 2.
Explanation: Given the figure with values.
The given figure with values is 8, 6.
Now, we will find the difference value.
So, the values are 8, 6
i.e., 8 – 6
Hence, the difference between 8 and 6 is 2.
Question 5.
CHALLENGE Gretchen and her dad went to the football game last week. By the end of the second quarter, the Vikings had 6 points and the Ducks had 21 points. The Vikings scored 23 more points before the end of the game, and the Ducks scored 13 more points.
a. Which team won the game?
Answer: The Ducks team won the game.
Explanation: Given that,
The Vikings had 6 points and the Ducks had 21 points.
The Vikings scored 23 more points before the end of the game, and the Ducks scored 13 more points.
So, the values are,
The Vikings are 6 + 23 = 29.
The Ducks is 21 + 13 = 34.
So, the Duck team won the game.
b. How many points did they win by? Use sketches, numbers, and/or words to explain your answer.
Answer: The duck team won 5 more points than the Vikings.
Explanation: Given that,
The Vikings had 6 points and the Ducks had 21 points.
The Vikings scored 23 more points before the end of the game, and the Ducks scored 13 more points.
Now, we will find out how many points did they win.
So, the values are,
The Vikings are 6 + 23 = 29.
The Ducks is 21 + 13 = 34.
The difference between the Vikings and Duck’s points are 34 – 29
So, the Duck team won the points 5 more than the Vikings.