Practicing the Bridges in Mathematics Grade 2 Home Connection Answer Key Unit 4 Module 2 will help students analyze their knowledge of concepts.
Bridges in Mathematics Grade 2 Home Connections Answer Key Unit 4 Module 2
Bridges in Mathematics Grade 2 Home Connections Unit 4 Module 2 Session 2 Answer Key
Paths & Piggybanks
Little Inchworm wants to get from the house to the duck pond. She can use Path A, B, or C.
Question 1.
Which path looks shortest? (circle one)
Path A Path B Path C
Answer:
Path A looks shortest.
Question 2.
Use the inch side of your ruler. Measure each path to find out which one is shortest.
a. Path A is ____ inches long.
b. Path B is ____ inches long.
c. Path C is ____ inches long.
Answer:
a. Path A is 10 inches long.
b. Path B is 11 inches long.
c. Path C is 12 inches long.
Question 3.
Which path is shortest? ________
Answer:
Path A is the shortest
Question 4.
Which path is longest? ________
Answer:
Path C is the longest.
Question 5.
CHALLENGE Use a red pencil or marker. Draw the shortest path from the house to the duck pond. Measure your new path with the inch side of your ruler.
About how long is your new path? _____ inches
Answer:
The new path is 7 inches long.
Ella took all the coins out of her piggy bank. She made a graph about them.
Question 6.
Does Ella have more dimes or more pennies? ________
Answer:
Elle has more dimes than pennies.
Question 7.
Which coin does Ella have the most of? ________
Answer:
Ella has Nickel coins more.
Question 8.
How many fewer dimes are there than nickels? ________
Answer:
10¢ + 10¢ + 10¢ + 10¢ + 10¢ = 50¢
5¢ + 5¢ + 5¢ + 5¢ + 5¢ + 5¢ + 5¢ = 35¢
50¢ – 35¢ = 15¢
Question 9.
How much money does Ella have in her bank? ________
Answer:
10¢ + 10¢ + 10¢ + 10¢ + 10¢ = 50¢
5¢ + 5¢ + 5¢ + 5¢ + 5¢ + 5¢ + 5¢ = 35¢
1¢ + 1¢ = 2¢
50¢ + 35¢ + 2¢ = 87¢
Question 10.
CHALLENGE Ella wants to buy a binder for $1.00. How much more money does she need? Show your work.
Answer:
Ella wants to buy a binder for $1.00.
10¢ + 10¢ + 10¢ + 10¢ + 10¢ = 50¢
5¢ + 5¢ + 5¢ + 5¢ + 5¢ + 5¢ + 5¢ = 35¢
1¢ + 1¢ = 2¢
$1 = 100¢
100¢ – 50¢ – 35¢ – 2¢ = 13¢
Bridges in Mathematics Grade 2 Home Connections Unit 4 Module 2 Session 4 Answer Key
Adding, Subtracting & Measuring
Hundreds Grid
Question 1.
Find each sum. Use the hundreds grid to help.
Answer:
By adding 10 with 50 we get 60.
By adding 10 with 38 we get 48.
By adding 10 with 45 we get 55.
By adding 10 with 66 we get 76.
By adding 10 with 79 we get 89.
By adding 10 with 53 we get 63.
By adding 10 with 26 we get 36.
By adding 10 with 19 we get 29.
By adding 10 with 21 we get 31.
By adding 10 with 81 we get 91.
By adding 10 with 37 we get 47.
By adding 10 with 40 we get 50.
By adding 10 with 72 we get 82.
By adding 10 with 27 we get 37.
Question 2.
Find each difference. Use the hundreds grid to help.
Answer:
By subtracting 10 from 75 we get 65.
By subtracting 10 from 55 we get 45.
By subtracting 10 from 42 we get 32.
By subtracting 10 from 99 we get 89.
By subtracting 10 from 87 we get 77.
By subtracting 10 from 18 we get 08.
By subtracting 10 from 21 we get 11.
By subtracting 10 from 47 we get 37.
By subtracting 10 from 14 we get 04.
By subtracting 10 from 51 we get 41.
By subtracting 10 from 39 we get 29.
By subtracting 10 from 28 we get 18.
By subtracting 10 from 77 we get 67.
By subtracting 10 from 94 we get 84.
Question 3.
Use a ruler marked in inches to measure each strip. Write the length in the space next to the strip. Label your answers with the correct units (inches, in., or “).
Answer:
Question 4.
There are 12 inches in 1 foot. Use this information to answer the questions below.
a. How many feet are equal to 24 inches? ________
b. How many feet are equal to 36 inches? ________
Answer:
a.
There are 12 inches in 1 foot.
24 inches = 24/12 = 2 feet
2 feet are equal to 24 inches.
b.
There are 12 inches in 1 foot.
36 inches = 36/12 = 3 feet
3 feet are equal to 36 inches.
Question 5.
Rodney has a piece of rope that is 82 inches long. Simon has a piece of rope that is 27 inches long. How much longer is Rodney’s piece of rope? Show all your work.
Answer:
Given,
Rodney has a piece of rope that is 82 inches long.
Simon has a piece of rope that is 27 inches long.
82 – 27 = 55 inches
His rope is 55 inches longer.
Question 6.
CHALLENGE Maria and Katy each have a piece of string. When they put the two pieces of string together end to end, the total length is 84 inches. Maria’s string is 6 inches longer than Katy’s. How long is Maria’s piece of string? How long is Katy’s piece of string? Show all your work. Use another piece of paper if you need to.
Answer:
Given,
Maria and Katy each have a piece of string. When they put the two pieces of string together end to end, the total length is 84 inches.
Maria’s string is 6 inches longer than Katy’s.
Let Maria’s piece is x inches.
Katy’s piece is y inche inches
The total length of the two pieces is 84 inches
x + y = 84
Maria’s string is 6 inches longer than Katy’s.
x = y + 6
(y + 6) + y = 84
2y + 6 = 84
2y = 78
y = 39
x = 39 + 6
x = 45
Maria’s piece is 45 inches long
Katy’s piece is 39 inches long