The solutions to Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 6 Module 2 can help students to clear their doubts quickly.
Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 6 Module 2
Bridges in Mathematics Grade 3 Home Connections Unit 6 Module 2 Session 1 Answer Key
More Polygons & Time
Question 1.
Circle the quadrilaterals.
Answer:
Question 2.
Draw the following polygons on the grids below. Use a ruler to help make your lines straight.
a. A polygon with 5 sides and 1 right angle
Answer:
b. A quadrilateral with exactly 1 pair of parallel sides
Answer:
c. A quadrilateral with 2 acute angles
Answer:
d. A polygon with 3 sides and 1 right angle
Answer:
Question 3.
Write the time shown on each clock.
Answer:
Question 4.
Brad likes to bake brownies. It takes him 15 minutes to mix up all the ingredients. Then the brownies need to bake for 25 minutes. After that they have to cool off for 7 minutes. How long does it take Brad to have brownies ready to eat? Show your work.
Answer:
Given,
Brad likes to bake brownies. It takes him 15 minutes to mix up all the ingredients. Then the brownies need to bake for 25 minutes. After that they have to cool off for 7 minutes.
15 + 25 + 7 = 47 minutes
Question 5.
CHALLENGE Kevin is building a large model of a soccer ball out of foam board. A soccer ball is made of 20 hexagons and 12 pentagons. It takes Kevin 6 minutes to measure and cut each hexagon, and it takes him 5 minutes to measure and cut each pentagon.
a. It will take Kevin ______________ minutes to make all the pieces. Show all your work.
Answer:
Given,
Kevin is building a large model of a soccer ball out of foam board.
A soccer ball is made of 20 hexagons and 12 pentagons.
It takes Kevin 6 minutes to measure and cut each hexagon, and it takes him 5 minutes to measure and cut each pentagon.
20 × 6 = 120 minutes
12 × 5 = 60
120 + 60 = 180 minutes
It will take Kevin 180 minutes to make all the pieces.
b. It will take Kevin ______________ hours to make all the pieces. Show all your work.
Answer:
180/60 = 3 hours
It will take Kevin 3 hours to make all the pieces.
Bridges in Mathematics Grade 3 Home Connections Unit 6 Module 2 Session 3 Answer Key
Sorting & Identifying Quadrilaterals
Question 1.
A trapezoid is a quadrilateral with exactly 1 pair of parallel sides. Circle the 2 sides that are parallel to each other on each of the trapezoids below. Mark the 2 sides that are not parallel to each other with an x on each of the trapezoids below.
Answer:
Question 2.
A parallelogram is any quadrilateral with 2 pairs of parallel sides. On each of the parallelograms below, circle 1 pair of parallel sides in blue. Circle the other pair of parallel sides in red.
Answer:
Question 3.
Find all the trapezoids below. Color them orange. Find all the parallelograms below. Color them purple. When you finish, you should have 2 quadrilaterals that are not colored.
Answer:
Question 4.
a. This shape is a
trapezoid
parallelogram
square
rectangle
Answer: The shape of the above figure is trapezoid.
b. How do you know that the shape is not a parallelogram? Use labeled sketches, numbers, or words to explain.
Answer: It can’t be a parallelogram because it only has one pair of parallel sides, and a parallelogram has two pairs of parallel sides.
Question 5.
a. This shape is a
trapezoid
parallelogram
square
rectangle
Answer: The shape of the above figure is parallelogram.
b. How do you know that the shape is not a rectangle? Use labeled sketches, numbers, or words to explain.
Answer: A rectangle has four right angles and this shape has zero right angles.
Question 6.
a. This shape is a
trapezoid
parallelogram
square
rectangle
Answer: The shape of the above figure is quadrilateral.
b. How do you know that the shape is not a trapezoid? Use labeled sketches, numbers, or words to explain.
Answer: a trapezoid has one pair of parallel sides, but this shape has no parallel sides.
Bridges in Mathematics Grade 3 Home Connections Unit 6 Module 2 Session 5 Answer Key
Quadrilateral Matchup
Question 1.
Draw a line connecting each quadrilateral with its description.
Answer:
Question 2.
Solve the following:
Answer:
Question 3.
Oranges cost 25 cents for \(\frac{1}{2}\) kilogram. How much would 8 kilograms of oranges cost?
Answer:
Given,
Oranges cost 25 cents for \(\frac{1}{2}\) kilogram.
100 cents = $1
25 cents = $0.25
2 × 0.25 = $0.50
The cost of 8 kgs of oranges
8 × 0.50 = $4
Thus the cost of 8 kg oranges at 25 cents for half kg shall be $4.00
Question 4.
CHALLENGE Julia wants to bring watermelon for the third grade picnic. Seedless watermelon costs 39 cents for \(\frac{1}{2}\) kilogram. One serving of watermelon weighs about 150 grams. There will be 60 people at the picnic.
a. How many kilograms of watermelon will Julia need to buy? (Remember, there are 1,000 grams in one kilogram.)
Answer:
| Servings | Mass |
| 1 | 150 g |
| 2 | 300 g |
| 20 | 3000 g |
| 60 | 9000 g |
b. How much will that watermelon cost?
Answer:
| Mass | Mass |
| ½ kg | $0.39 |
| 1 kg | $0.78 |
| 10 kg | $7.80 |
| 9 kg | $7.02 |