go math 3rd grade homework book answers

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Go Math! 3 Student Edition, Grade: 3 Publisher: Houghton Mifflin Harcourt

Go math 3 student edition, title : go math 3 student edition, publisher : houghton mifflin harcourt, isbn : 547352026, isbn-13 : 9780547352022, use the table below to find videos, mobile apps, worksheets and lessons that supplement go math 3 student edition., textbook resources.

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Math Books - Grade 3

Grade 3 Go Math Practice - Answer Keys

Year Published: 2015

Description: Florida Common Core Standard Practice

Grade 3 HMH Go Math Assessment Tests

Year Published: 2019

Grade 3 Go Math Student- Answer Keys

What is Common Core

The Common Core is a set of high-quality academic standards in mathematics and English language arts/literacy (ELA).

These learning goals outline what a student should know and be able to do at the end of each grade.

Learn more »

What Parents Should Know

Today’s students are preparing to enter a world in which colleges and businesses are demanding more than ever before.

To ensure all students are ready for success after high school, the Common Core State Standards establish clear, consistent guidelines for what every student should know and be able to do in math and English language arts from kindergarten through 12th grade.

Common core - Common mistakes

Use the repeated-addition strategy to solve 5x3.

If you answer the question with 5+5+5=15, you would be wrong.

The correct answer is 3+3+3+3+3.

Mathematically, both are correct. But under Common Core, you're supposed to read 5x3 as "five groups of three." So "three groups of five" is wrong.

Getting started

Math Practice 101 gives you a powerful, patterns-based way to learn and practice for the upcoming Common Core Standard Test

Get more didactic materials

We offer school books, library books, test and practice worksheets to help you sharpen your math skills.

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As a registered member, you have access to our online tutors that will help you with any questions you might have.

Featured problem of the day

 In the figure, we see an island with a funny shape and several frogs.

 How many of these frogs are sitting on the island?

Spiral Review

Which equation is NOT included in the same set of related facts as \(6\times8=48\)?

• \(\large 8\times6=48\)
• \(\large 8\times8=64\)
• \(\large 48\div6=8\)
• \(\large 48\div8=6\)

Solve the problem.

Miles ate two hot dogs with buns. Each hot dog has a mass of 45 grams, and each hot dog bun has a mass of 33 grams. How many grams of hot dogs and buns id Miles eat in all?

Explanation:

\(2\times45+2\times33=156\)

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Go Math Grade 3 Chapter 11 Answer Key Pdf Perimeter and Area

Go Math Grade 3 Chapter 11 Answer Key Pdf: Go Math Grade 3 Answer Key Chapter 11 Perimeter and Area is an essential study material for students. Basic concepts of Perimeter and Area are clearly explained to score high marks for students. Also, in-depth knowledge of Chapter 11 Perimeter and Area Go Math Grade 3 Answer Key mentioned with a clear explanation. Furthermore, Go Math Grade 3 Perimeter and Area is very convenient for students who are struggling and want to do extra practice in small groups. Every problem is solved and mentioned with a detailed explanation to support the students while their practice. The quiz, homework, formative assessment, or just extra practice whatever you wish to solve can easily do using Go Math Grade 3 Answer Key Chapter 11 Perimeter and Area Answer Key.

Perimeter and Area Go Math Grade 3 Chapter 11 Answer Key Pdf

For the bright future of students, following Go Math Grade 3 Chapter 11 Answer Key Perimeter and Area is mandatory. Improve problem-solving capacity by using HMH Go Math Grade 3 Answer Key.

Lesson 1: Model Perimeter

Model Perimeter – Page No. 629

• Model Perimeter Lesson Check – Page No. 630

Lesson 2: Find Perimeter

• Find Perimeter – Page No. 635
• Find Perimeter Lesson Check – Page No. 636

Lesson 3: Find Unknown Side Lengths

• Find Unknown Side Lengths – Page No. 641
• Find Unknown Side Lengths Lesson Check – Page No. 642

Lesson 4: Understand Area

• Understand Area – Page No. 647
• Understand Area Lesson Check – Page No. 648

Lesson 5: Measure Area

• Measure Area – Page No. 653
• Measure Area Lesson Check – Page No. 654

Lesson 6: Use Area Models

• Use Area Models – Page No. 659
• Use Area Models Lesson Check – Page No. 660

Mid -Chapter Checkpoint

• Mid -Chapter Checkpoint – Page No. 661
• Mid -Chapter Checkpoint Lesson Check – Page No. 662

Lesson 7: Problem Solving Area of Rectangles

• Problem Solving Area of Rectangles – Page No. 667
• Problem Solving Area of Rectangles Lesson Check – Page No. 668

Lesson 8: Area of Combined Rectangles

• Area of Combined Rectangles – Page No. 673
• Area of Combined Rectangles Lesson Check – Page No. 674

Lesson 9: Same Perimeter, Different Areas

• Same Perimeter, Different Areas – Page No. 679
• Same Perimeter, Different Areas Lesson Check – Page No. 680
• Same Perimeter, Different Areas Lesson Check 1 – Page No. 685
• Same Perimeter, Different Areas Lesson Check 2 – Page No. 686

Review/Test

• Review/Test – Page No. 687
• Review/Test – Page No. 688
• Review/Test – Page No. 689
• Review/Test – Page No. 690
• Review/Test – Page No. 691
• Review/Test – Page No. 692

Find the perimeter of the shape. Each unit is 1 centimeter.

Answer: 22 centimeters

Answer: 26 centimeters

Answer: 30 centimeters

Problem Solving

Question 5. What is the perimeter of Patrick’s shape? __________ centimeters

Answer: 20 centimeters

Question 6. How much greater is the perimeter of Jillian’s shape than the perimeter of Patrick’s shape? __________ centimeters

Answer: 2 centimeters

Model Perimeter – Page No. 630

Lesson Check

Answer: d. 20 centimeters

Answer: b. 26 centimeters

Spiral Review

Question 3. Which lists the fractions in order from least to greatest? \(\frac{2}{4}, \frac{2}{3}, \frac{2}{6}\) Options: a. \(\frac{2}{3}, \frac{2}{4}, \frac{2}{6}\) b. \(\frac{2}{6}, \frac{2}{4}, \frac{2}{3}\) c. \(\frac{2}{4}, \frac{2}{3}, \frac{2}{6}\) d. \(\frac{2}{3}, \frac{2}{6}, \frac{2}{4}\)

Answer: b. \(\frac{2}{6}, \frac{2}{4}, \frac{2}{3}\)

Explanation: The numerator of the given factors is the same. So, look at the denominators to compare the size of the pieces. As the denominator gets smaller, the fraction gets larger. In the given problem, 3 is the smaller denominator compared to 4 and 6. Then, 4 is the next smaller denominator. So, the fractions in order from least to greatest are 2/6, 2/4, 2/3.

Answer: c. 8:30

Explanation: In the figure, hour-hand is indicating number 8. So, we say it is 8 hours. The minute hand is on 6. To find the minutes, multiply 6 x 5 = 30. So, it indicates 30 minutes. The time is 8 hours 30 minutes.

Question 5. Michael and Dex are comparing fraction strips. Which statement is NOT correct? Options: a. \(\frac{1}{2}<\frac{2}{2}\) b. \(\frac{2}{3}>\frac{1}{3}\) c. \(\frac{4}{8}<\frac{3}{8}\) d. \(\frac{4}{6}>\frac{2}{6}\)

Answer: c. \(\frac{4}{8}<\frac{3}{8}\)

Explanation: The denominators of the given fractions are the same. So, look at the numerators to compare the numbers. 1 < 2 is correct. 2 > 1 is correct. 4 < 3 is not correct. So, 4/8 < 3/8 is not correct.

Question 6. Aiden wants to find the mass of a bowling ball. Which unit should he use? Options: a. liter b. inch c. gram d. kilogram

Answer: d. kilogram

Explanation: The kilogram is used to find the mass of a bowling ball.

Find Perimeter – Page No. 635

Use a ruler to find the perimeter. (Note: on mobile devices like smart phones or tablets, the measurements will not be accurate.)

Answer: 12 cm

Explanation: Add the lengths of the sides measured to the perimeter. 4 + 3 + 2 + 3 = 12 cm.

Answer: 13 centimeters

Explanation: Use a centimeter ruler to measure the length of each side. Record and add the lengths of the sides measured to the nearest centimeter. 5 cm + 1 cm + 1 cm + 2 cm + 4 cm = 13 centimeters.

Answer: 8 inches

Explanation: Use an inch ruler to measure the length of each side to the nearest inch. Record and add the lengths of the sides measured to the nearest inch. 2 in + 2 in + 2 in + 2 in =8 inches.

Answer: 6 inches

Explanation: Use an inch ruler to measure the length of each side. Record and add the lengths of the sides measured to the nearest inch. 2 in + 2 in + 2 in = 6 inches.

Draw a picture to solve 5–6.

Question 5. Evan has a square sticker that measures 5 inches on each side. What is the perimeter of the sticker? _________ inches

Answer: 20 inches

Question 6. Sophie draws a shape that has 6 sides. Each side is 3 centimeters. What is the perimeter of the shape? _________ centimeters

Answer: 18 centimeters

Explanation: The perimeter of the shape is = Addition of all sides. Given that Sophie draws a shape that has 6 sides with 3 centimeters. So, the perimeter of the shape = 3 + 3 + 3 + 3 + 3 + 3 = 18 centimeters

Find Perimeter – Page No. 636

Use an inch ruler for 1–2.

Answer: c. 6 inches

Answer: d. 8 inches

Answer: c. 20 units

Answer: c. 3:26 P.M.

Explanation: Given that Vince arrives for his trumpet lesson after school at the time shown on the clock. As it is mentioned after school time, it is Noon. The times afternoon and before midnight are written with P.M. The hour hand is indicating the number 3. So, the answer is 3:26 P.M.

Question 5. Matthew’s small fish tank holds 12 liters. His large fish tank holds 25 liters. How many more liters does his large fish tank hold? Options: a. 12 liters b. 13 liters c. 25 liters d. 37 liters

Answer: b. 13 liters

Explanation: To get the more liters, do subtraction of large fish tank liters to small fish tank liters. So, The large fish tank is 25 liters – 12 liters = 13 liters more than Matthew’s small fish tank.

Question 6. Cecila and Sasha are comparing fraction strips. Which statement is correct? Options: a. \(\frac{1}{2}<\frac{1}{3}\) b. \(\frac{1}{8}>\frac{1}{6}\) c. \(\frac{1}{4}>\frac{1}{2}\) d. \(\frac{1}{6}<\frac{1}{4}\)

Answer: d. \(\frac{1}{6}<\frac{1}{4}\)

Explanation: Cecila and Sasha are comparing fraction strips. In the given fractions, the numerators are same. So, compare the denominators to find the largest fraction. As the denominator gets smaller, the fraction gets larger. 2 < 3 wrong. 8 > 6 wrong. 4 > 2 wrong. 6 < 4 correct. So, 1/6 < 1/4 is the correct answer.

Find Unknown Side Lengths – Page No. 641

Find the unknown side lengths.

Answer: 9 centimeters

Explanation: If I knew the length x, I would add all the side lengths to find the perimeter. Given Perimeter = 33 centimeters. Add the lengths of the given sides. 5 + 8 + 7 + 4 + x = 33. 24 + x = 33. x = 33 – 24 =9. x = 9 centimeters.

Answer: 3 feet

Explanation: Given Perimeter = 14 feet. Add the lengths of the given sides to find r. 4 ft + 4 ft + r + r = 14 feet. If r =1 -> 4 + 4 + 1 + 1 = 10 not equal to 14. If r = 2 -> 4 + 4 + 2 + 2 = 12 not equal to 14. If r = 3 -> 4 + 4 + 3 + 3 = 14 equal to 14. So, r = 3 feet.

Answer: 11 meters

Explanation: Given that Perimeter = 37 meters. Add the lengths of the given sides to find s. 8 + 11 + 5 + 2 + s = 37. 26 + s = 37. s = 37 – 26 = 11. s = 11 meters.

Answer: 15 inches

Explanation: Given that Perimeter = 92 inches. Add the lengths of the given sides to find t. 7 + 23 + 12 + 12 +23 + t = 92 77 + t = 92. s = 92 – 77 = 15. s = 15 inches.

Question 5. Steven has a rectangular rug with a perimeter of 16 feet. The width of the rug is 5 feet. What is the length of the rug? ____ feet

Question 6. Kerstin has a square tile. The perimeter of the tile is 32 inches. What is the length of each side of the tile? ____ inches

Find Unknown Side Lengths – Page No. 642

Question 1. Jesse is putting a ribbon around a square frame. He uses 24 inches of ribbon. How long is each side of the frame? Options: a. 4 inches b. 5 inches c. 6 inches d. 8 inches

Explanation: Jesse is putting a ribbon around a square frame. A square has four sides that are equal in length. So, 4 x k = 24 inches. 4 x 6 = 24 inches. Each side of the frame 6 inches.

Question 2. Davia draws a shape with 5 sides. Two sides are each 5 inches long. Two other sides are each 4 inches long. The perimeter of the shape is 27 inches. What is the length of the fifth side? Options: a. 9 inches b. 13 inches c. 14 inches d. 18 inches

Answer: a. 9 inches

Explanation: . From the given information, Davia draws a shape with 5 sides. 2 sides = each 5 inches long. 2 sides = each 4 inches long. Let the other side is k. The perimeter of the shape = 5 + 5 + 4 + 4 + k = 27 inches. 18 + k = 27 inches. k = 27 – 18 inches. k = 9 inches.

Question 3. Which of the following represents 7 + 7 + 7 + 7? Options: a. 4 × 4 b. 4 × 7 c. 6 × 7 d. 7 × 7

Answer: b. 4 × 7

Explanation: 7 + 7 + 7 + 7 = 28. 4 x 4 = 16 not equal to 28. 4 x 7 = 28 equal to 28. 7 + 7 + 7 + 7 = 4 × 7.

Go Math Grade 3 Chapter 11 Review/Test Answer Key Question 4. Bob bought 3 packs of model cars. He gave 4 cars to Ann. Bob has 11 cars left. How many model cars were in each pack? Options: a. 18 b. 11 c. 7 d. 5

Answer: d. 5

Explanation: If Bob has 11 cars left after he gave 4 to Ann, that means he had 15 cars in total. If Bob had 15 cars in total, and these 15 cars were divided into 3 packs, that means each pack contained 5 cars. The answer is 5 cars in each pack.

Answer: b. 45 minutes

Explanation: Randy started reading at 4:10. Randy finished reading at 4:55. Subtract to find the Randy read time. 4:55 – 4:10 = 45 minutes So, Randy read 45 minutes.

Answer: a. \(\frac{4}{4}\) = 1

Explanation: The first image represents the whole circle divided into 4 equal parts. So, each part is \(\frac{1}{4}\). Together, all 4 parts represent \(\frac{4}{4}\) or one whole circle. The second image represents one whole circle. \(\frac{4}{4}\) = 1.

Understand Area – Page No. 647

Count to find the area for the shape.

Answer: 6 square units

Answer: 4 square units

Answer: 5 square units

Answer: 7 square units

Answer: 8 square units

Answer: 13 square units

Write area or perimeter for each situation.

Question 7. carpeting a floor _________

Answer: Area

Question 8. fencing a garden _________

Answer: 2. Perimeter

Answer: 12 square units

Question 9. Rober to is building a platform for his model railroad. What is the area of the platform? Area = ______ square units

Explanation: The area of the platform = Count the total number of Squares to get the answers. 1, 2, 3, 4, 5, 6, 7, 8,9, 10, 11, 12. Area = 12 square units.

Question 10. Rober to will put a border around the edges of the platform. How much border will he need? Border = ______ units

Answer: 16 units

Explanation: To know the edges of the platform, we need to calculate the perimeter of the given shape. So, we need to add the length of all sides. 2 + 4 + 3 + 2 + 1 + 1 + 2 + 1 = 16 units.

Understand Area – Page No. 648

Answer: a. 3 square units

Answer: b. 5 square units

Question 3. Leonardo knows it is 42 days until summer break. How many weeks is it until Leonardo’s summer break? (Hint: There are 7 days in a week.) Options: a. 5 weeks b. 6 weeks c. 7 weeks d. 8 weeks

Answer: b. 6 weeks

Explanation: Leonardo knows it is 42 days until summer break. There are 7 days in a week. So, by dividing 42 with 7 Leonardo can find summer break in weeks. 42/7 = 6 weeks.

Question 4. Nan cut a submarine sandwich into 4 equal parts and ate one part. What fraction represents the part of the sandwich Nan ate? Options: a. \(\frac{1}{4}\) b. \(\frac{1}{3}\) c. \(\frac{4}{4}\) d. \(\frac{4}{1}\)

Answer: a. \(\frac{1}{4}\)

Explanation: Nan cut a submarine sandwich into 4 equal parts and ate one part. So, remaining parts are 3. The fraction of the sandwich Nan ate = \(\frac{1}{4}\).

Question 5. Wanda is eating breakfast. Which is a reasonable time for Wanda to be eating breakfast? Options: a. 7:45 A.M. b. 7:45 P.M. c. 2:15 P.M. d. 2:15 A.M.

Answer: a. 7:45 A.M.

Explanation: The reasonable time for Wanda to eat breakfast is 7:45 A.M. Because breakfast will eat in the morning i.e, A.M.

Question 6. Dick has 2 bags of dog food. Each bag contains 5 kilograms of food. How many kilograms of food does Dick have in all? Options: a. 3 kilograms b. 5 kilograms c. 7 kilograms d. 10 kilograms

Answer: d. 10 kilograms

Explanation: Dick has 2 x 5 = 10 kilograms of food in total.

Measure Area – Page No. 653

Count to find the area of the shape. Each unit square is 1 square centimeter.

Answer: 14 square centimeters

Answer: 16 square centimeters

Answer: 11 square centimeters

Answer: 22 square centimeters

Question 5. What is the area of the deck that Alan has already painted gray? _______ square meters

Answer: 16 square meters

Question 6. What is the area of the deck that Alan has left to paint? _______ square meters

Answer: 19 square meters

Measure Area – Page No. 654

Question 1. How many square feet are shaded? Options: a. 19 square feet b. 21 square feet c. 23 square feet d. 25 square feet

Answer: c. 23 square feet

Question 2. What is the area that has NOT been shaded? Options: a. 19 square feet b. 21 square feet c. 23 square feet d. 25 square feet

Answer: a. 19 square feet

Question 3. Sonya buys 6 packages of rolls. There are 6 rolls in each package. How many rolls does Sonya buy? Options: a. 42 b. 36 c. 24 d. 12

Answer: b. 36

Explanation: 6 x 6 = 36. Sonya buys 36 rolls.

Go Math Grade 3 Chapter 11 Test Answer Key Question 4. Charlie mixed 6 liters of juice with 2 liters of soda to make fruit punch. How many liters of fruit punch did Charlie make? Options: a. 3 liters b. 4 liters c. 8 liters d. 12 liters

Answer: c. 8 liters

Explanation: 6 + 2 = 8 liters. Charlie can make 8 liters of fruit punch.

Explanation: Option d is the correct answer. 2/3 means the whole circle has 3 parts. 2 of the parts are shaded.

Answer: c. \(\frac{2}{4}\)

Explanation: \(\frac{2}{4}\) = \(\frac{1}{2}\). So, the answer is \(\frac{2}{4}\)

Use Area Models – Page No. 659

Find the area of each shape. Each unit square is 1 square foot.

Answer: 24 square feet

_________ square feet

Find the area of each shape. Each unit square is 1 square meter.

Answer: 16 square feet

Answer: 12 square meters

Answer: 24 square meters

Answer: 15 square meters

Answer: 20 square feet

Answer: 8 square feet

Use Area Models – Page No. 660

Answer: b. 9 square meters

Answer: c. 10 square feet

Question 3. Ann and Bill are comparing fraction strips. Which statement is correct? Options: a. \(\frac{3}{8}>\frac{5}{8}\) b. \(\frac{3}{4}<\frac{1}{4}\) c. \(\frac{3}{6}>\frac{4}{6}\) d. \(\frac{1}{3}<\frac{2}{3}\)

Answer: d. \(\frac{1}{3}<\frac{2}{3}\)

Explanation: The denominator of the given fractions are same. So, compare the numerators to find the correct answer. 3 > 5 wrong. 3 < 1 wrong. 3 > 4 wrong. 1 < 2 correct. The answer is \(\frac{1}{3}<\frac{2}{3}\).

Question 4. Claire bought 6 packs of baseball cards. Each pack had the same number of cards. If Claire bought 48 baseball cards in all, how many cards were in each pack? Options: a. 54 b. 42 c. 8 d. 6

Answer: c. 8

Explanation: 6 x k = 48. So, k = 48/6 = 8. 8 cards were in each pack.

Question 5. Austin left for school at 7:35 A.M.. He arrived at school 15 minutes later. What time did Austin arrive at school? Options: a. 7:40 A.M. b. 7:50 A.M. c. 7:55 A.M. d. 8:00 A.M.

Answer: b. 7:50 A.M.

Explanation: 7:35 A.M. + 15 minutes = 7:50 A.M

Question 6. Wyatt’s room is a rectangle with a perimeter of 40 feet. The width of the room is 8 feet. What is the length of the room? Options: a. 5 feet b. 12 feet c. 16 feet d. 32 feet

Answer: b. 12 feet

Explanation: The perimeter of rectangle = 40 feet. The width of the room is 8 feet. 8 + k + 8 + k = 40. If k = 10 -> 8 + 10 + 8 + 10 = 36. If k = 11 -> 8 + 11 + 8 + 11 = 38. If k = 12 -> 8 + 12 + 8 + 12 = 40. So, the length of the room = 12 feet.

Mid -Chapter Checkpoint – Page No. 661

Question 1. The distance around a figure is the _____________ . _____________

Answer: Perimeter

Question 2. The measure of the number of unit squares needed to cover a figure with no gaps or overlaps is the _____________ . _____________

Concepts and Skills

Find the perimeter of the figure. Each unit is 1 centimeter.

Answer: 16 centimeters

Answer: 14 cm

Answer: 3 centimeters

Explanation: Given that Perimeter = 33 centimeters. 10 + 6 + 10 + g + 4 = 33 centimeters. 30 + g = 33 centimeters. g= 33 – 30 centimeters. g = 3 centimeters.

Answer: 4 feet

Explanation: Perimeter = 32 feet. 12 ft + k + 12 ft + k = 32 feet. If k = 1 then 12 + 1 + 12 + 1 = 26 feet not equal to 32 feet. If k = 2 then 12 + 2 + 12 + 2 = 28 feet not equal to 32 feet. If k = 3 then 12 + 3 + 12 + 3 = 30 feet not equal to 32 feet. If k = 4 then 12 + 4 + 12 + 4 = 32 feet equal to 32 feet. So, k = 4 feet.

Find the area of the figure. Each unit square is 1 square meter.

Answer: 14 square meters

Answer: 30 square meters

Mid -Chapter Checkpoint – Page No. 662

Answer: 24 square meters.

Explanation: The area of the lid = 4 cm x 6 cm = 24 cm. Ramona making 24 cm lid for her rectangular jewelry box.

Answer: 9 inches

Explanation: A square has the same lengths. The length of each side 4 x a = 36 inches. a = 36/4 = 9 inches.

Answer: 27 square units

Answer: 8 ft

Explanation: Perimeter = 3 + 1 + 3 + 1 = 8 ft.

Question 13. A rectangle has two side lengths of 8 inches and two side lengths of 10 inches. What is the perimeter of the rectangle? What is the area of the rectangle? Perimeter ______ inches Area = ______ square inches

Answer: Perimeter = 36 inches. Area = 80 square inches.

Problem Solving Area of Rectangles – Page No. 667

Use the information for 1–3.

Question 1. Complete the table to find the area of each mural.

Question 2. Find and describe a pattern of how the length changes and how the width changes for murals A through D. Type below: _____________

Answer: For each mural, the width doubles and the length stays the same.

Question 3. How do the areas of the murals change when the width changes? Type below: _____________

Answer: For each mural, the area doubles.

Question 4. Dan built a deck that is 5 feet long and 5 feet wide. He built another deck that is 5 feet long and 7 feet wide. He built a third deck that is 5 feet long and 9 feet wide. How do the areas change? Type below: _____________

Answer: The area of each deck is increased by 10 square feet.

Explanation: 1st deck area = 5 x 5 = 25 feet. 2nd deck area = 5 x 7 = 35 feet. 3rd deck area = 5 x 9 = 45 feet. The area of each deck is increased by 10 square feet.

Problem Solving Area of Rectangles – Page No. 668

Answer: b. 12 square centimeters

Question 2. Henry built one garden that is 3 feet wide and 3 feet long. He also built a garden that is 3 feet wide and 6 feet long, and a garden that is 3 feet wide and 9 feet long. How do the areas change? Options: a. The areas do not change. b. The areas double. c. The areas increase by 3 square feet. d. The areas increase by 9 square feet.

Answer: d. The areas increase by 9 square feet.

Explanation: 1st garden = 3 x 3 = 9 feet. 2nd garden = 3 x 6 = 18 feet. 3rd garden = 3 x 9 = 27 feet. The areas increase by 9 square feet.

Question 3. Joe, Jim, and Jack share 27 football cards equally. How many cards does each boy get? Options: a. 7 b. 8 c. 9 d. 10

Answer: c. 9

Explanation: x + x + x = 27. 3x = 27. x = 27/3 = 9. Each boy gets 9 football cards.

Answer: b. 4

Explanation: \(\frac{1}{3}\) of a carton of 12 eggs = \(\frac{1}{3}\) x 12 = 4. Nita uses 4 eggs.

Question 5. Brenda made 8 necklaces. Each necklace has 10 large beads. How many large beads did Brenda use to make the necklaces? Options: a. 80 b. 85 c. 90 d. 100

Answer: a. 80

Explanation: 8 x 10 = 80 beads. Brenda uses 80 beads to make the necklaces

3rd Grade Math Book Answers How to Find Area and Perimeter Question 6. Neal is tiling his kitchen floor. Each square tile is 1 square foot. Neal uses 6 rows of tiles with 9 tiles in each row. What is the area of the floor? Options: a. 15 square feet b. 52 square feet c. 54 square feet d. 57 square feet

Answer: c. 54 square feet

Explanation: The area of the floor = 6 x 9 = 54 square feet.

Area of Combined Rectangles – Page No. 673

Use the Distributive Property to find the area. Show your multiplication and addition equations.

Answer: 28 Square Units

Draw a line to break apart the shape into rectangles. Find the area of the shape.

Answer: 31 square units

Answer: 32 square units

Question 5. Draw a line to divide the shape of Frank’s room into rectangles.

Question 6. What is the total area of Frank’s room? _______ square feet

Answer: 75 square feet

Area of Combined Rectangles – Page No. 674

Answer: b. 16 square yards

Answer: b. 30 square meters

Question 3. Naomi needs to solve 28 ÷ 7 = ■. What related multiplication fact can she use to find the unknown number? Options: a. 3 × 7 = 21 b. 4 × 7 = 28 c. 5 × 7 = 35 d. 6 × 7 = 42

Answer: b. 4 × 7 = 28

Explanation: 28 ÷ 7 = 4. So, 4 x 7 = 28 is the answer.

Go Math Workbook Grade 3 Pdf Perimeter Answer Key Question 4. Karen drew a triangle with side lengths of 3 centimeters, 4 centimeters, and 5 centimeters. What is the perimeter of the triangle? Options: a. 7 centimeters b. 9 centimeters c. 11 centimeters d. 12 centimeters

Answer: d. 12 centimeters

Explanation: Perimeter = 3 centimeters + 4 centimeters + 5 centimeters = 12 centimeters.

Answer: c. fourth

Answer: c. 2

Explanation: The line segment = 2 inches.

Same Perimeter, Different Areas – Page No. 679

Find the perimeter and the area. Tell which rectangle has a greater area.

B: Perimeter = ______ units; Area = ______ square units; Rectangle ______ has a greater area.

Answer: Rectangle A has a greater area.

A: Perimeter = 4 + 1 + 4 + 1 = 10 Area = 4 x 1 = 4 square units B: Perimeter = 3 + 2 + 3 + 2 = 10 Area = 3 x 2 = 6 square units Rectangle B has a greater area.

Question 3. Tara’s and Jody’s bedrooms are shaped like rectangles. Tara’s bedroom is 9 feet long and 8 feet wide. Jody’s bedroom is 7 feet long and 10 feet wide. Whose bedroom has the greater area? Explain. _________ ‘s bedrooms is greater.

Answer: Tara’s bedroom has a greater area than Jody’s bedroom area.

Explanation: Tara’s bedroom area = 9 x 8 = 72 feet. Jody’s bedroom area = 7 x 10 = 70 feet. 72 feet > 70 feet. Tara’s bedroom has a greater area than Jody’s bedroom area.

Chapter 11 Mid Chapter Test Go Math Grade 3 Question 4. Mr. Sanchez has 16 feet of fencing to put around a rectangular garden. He wants the garden to have the greatest possible area. How long should the sides of the garden be? Width: ______ Length: ______ feet long

Answer: All four sides should be 4 feet long.

Explanation: Mr. Sanchez has 16 feet of fencing to put around a rectangular garden. Perimeter = 1 + 7 + 1 + 7 = 16 feet. Area = 1 x 7 = 7 feet. Perimeter = 2 + 6 + 2 + 6 = 16 feet. Area = 2 x 6 = 12 feet. Perimeter = 3 + 5 + 3 + 5 = 16 feet. Area = 3 x 5 = 15 feet. perimeter = 4 + 4 + 4 + 4 = 16 feet. Area = 4 x 4 = 16 feet. The area is maximum when all the four sides are 4 feet long.

Same Perimeter, Different Areas – Page No. 680

Explanation: Perimeter = 2 + 4 + 2 + 4 = 12 units. Area = 2 x 4 = 8 square units

Explanation: a. Area = 2 x 10 = 20. b. Area = 3 x 9 = 27. c. Area = 4 x 8 = 32. d. Area = 5 x 7 = 35. d has the greatest area.

Question 3. Kerrie covers a table with 8 rows of square tiles. There are 7 tiles in each row. What is the area that Kerrie covers in square units? Options: a. 15 square units b. 35 square units c. 42 square units d. 56 square units

Answer: d. 56 square units

Explanation: Area = 8 x 7 = 56. Kerrie covers 56 square units area.

Question 4. Von has a rectangular workroom with a perimeter of 26 feet. The length of the workroom is 6 feet. What is the width of Von’s workroom? Options: a. 7 feet b. 13 feet c. 20 feet d. 26 feet

Answer: a. 7 feet

Explanation: Perimeter = 26 feet. Length = 6 feet. Given Von has a rectangular workroom. So, two lengths and two widths are the same for a rectangle. Perimeter of a rectangle = Length + Width + Length + Width = 6 + W + 6 + W = 26 feet. 12 + 2W = 26 feet. 2W = 26 – 12 = 14. W = 14/2 = 7 feet.

Same Perimeter, Different Areas – Page No. 685

Find the perimeter and the area. Tell which rectangle has a greater perimeter.

B: Area = _______ square units; Perimeter = _______ units; Rectangle _______ has a greater perimeter.

Answer: Rectangle A has a greater perimeter

Answer: Rectangle B has a greater perimeter

Perimeter and Area Answer Key Go Math Florida Grade 3 Question 4. Compare the areas of Design A and Design B. The area of Design A ________ The area of Design B

Answer: The area of Rectangle A and Rectangle B are equal.

Explanation: A: Area = 20 square units ; B: Area = ___20____ square units;

Question 5. Compare the perimeters. Which design has the greater perimeter? The perimeter of A ________ The perimeter of B

Answer: The perimeter of A Greater than the perimeter of B

Explanation: A: Perimeter = 24 units ; B: Perimeter = ____18___ units;

Same Perimeter, Different Areas – Page No. 686

Answer: d. The perimeter of B is greater

Answer: b. The perimeter of A is greater.

Question 3. Marsha was asked to find the value of 8 – 3 x 2. She wrote a wrong answer. Which is the correct answer? Options: a. 22 b. 10 c. 4 d. 2

Answer: d. 2

Explanation: 8 – (3 x 2) = 8 – 6 = 2

Answer: c. \(\frac{3}{4}\)

Explanation: From the given figure, we can write the fraction name the point on the number line = \(\frac{3}{4}\)

Question 5. Kyle drew three line segments with these lengths: \(\frac{2}{4}\) inch, \(\frac{2}{3}\) inch, and \(\frac{2}{6}\) inch. Which list orders the fractions from least to greatest? Options: a. \(\frac{2}{6}, \frac{2}{4}, \frac{2}{3}\) b. \(\frac{2}{3}, \frac{2}{4}, \frac{2}{6}\) c. \(\frac{2}{4}, \frac{2}{3}, \frac{2}{6}\) d. \(\frac{2}{6}, \frac{2}{3}, \frac{2}{4}\)

Explanation: Given fractions are \(\frac{2}{4}\) inch, \(\frac{2}{3}\) inch, and \(\frac{2}{6}\) inch. All the fractions have the same numerator. The denominators should compare to find the answer. The smaller denominator represents the larger number. So, \(\frac{2}{6}, \frac{2}{4}, \frac{2}{3}\) is the answer.

Question 6. On Monday, \(\frac{3}{8}\) inch of snow fell. On Tuesday, \(\frac{5}{8}\) inch of snow fell. Which statement correctly compares the snow amounts? Options: a. \(\frac{3}{8}=\frac{5}{8}\) b. \(\frac{3}{8}<\frac{5}{8}\) c. \(\frac{5}{8}<\frac{3}{8}\) d. \(\frac{3}{8}>\frac{5}{8}\)

Answer: b. \(\frac{3}{8}<\frac{5}{8}\)

Explanation: Given fractions are \(\frac{3}{8}\) and \(\frac{5}{8}\). The denominators are equal for given fractions. So, compare numerators to find the correct equation. 3 < 5. So, \(\frac{3}{8}<\frac{5}{8}\) is the correct answer.

Review/Test – Page No. 687

Answer: a and c have a perimeter of 14 units.

Explanation: a. The Perimeter of A = 14 units. b. The perimeter of B = 16 units. c. The perimeter of C = 14 units. d. The perimeter of D = 16 units

Answer: 24 centimeters

Explanation: Perimeter = 6 + 6 + 6+ 6 = 24 centimeters.

Review/Test – Page No. 688

Answer: b and f are correct.

Answer: B rectangle has a number of square units for its area equal to the number of units of its perimeter

Explanation: a. Area = 1 x 7 = 7 units. Perimeter = 1 + 7 + 1 + 7 = 16 units. b. a. Area = 4 x 4 = 16 units. Perimeter = 4 + 4 + 4 + 4 = 16 units. c. a. Area = 2 x 6 = 12 units. Perimeter = 2 + 6 + 2 + 6 = 16 units. d. a. Area = 3 x 5 = 7 units. Perimeter = 3 + 5 + 3 + 5 = 16 units.

Explanation: Perimeter = s + s + s + s = 12 centimeters. 4s = 12 centimeters. s = 3 centimeters.

Review/Test – Page No. 689

Answer: Rectangle A has an area that is the same as the area of Rectangle B. A perimeter that is less than the perimeter of Rectangle B.

Answer: 18 units

Answer: 13 square meters

Review/Test – Page No. 690

Answer: 16 feet

Explanation: 20 + a + 6 + 8 + 14 + 8 = 72 feet. a + 56 = 72 feet. a = 72 – 56 feet. a = 16 feet.

Question 12. Elizabeth has two gardens in her yard. The first garden is 8 feet long and 6 feet wide. The second garden is half the length of the first garden. The area of the second garden is twice the area of the first garden. For numbers 12a–12d, select True or False.

First garden = 8 x 6 = 48 feet. Second garden length = Half the length of the first garden = 4 feet. Second Garden Area = Twice the area of the first garden = 2 x 48 = 96. Second Garden Area Width = 4 x s = 96. s = 96/4 = 24

a. The area of the first garden is 48 square feet. i. True ii. False

Answer: i. True

Question 12. b. The area of the second garden is 24 square feet. i. True ii. False

Answer: ii. False

Question 12. c. The width of the second garden is 12 feet. i. True ii. False

Explanation:

Question 12. d. The width of the second garden is 24 feet. i. True ii. False

Review/Test – Page No. 691

Answer: a and d options are correct.

Explanation: 3 + 5 + 3 + 5 = 16 inches 4 + 6 + 4 + 6 = 20 inches. 5 + 10 + 5 + 10 = 30 inches. 4 + 4 + 4 + 4 = 16 inches.

Question 14. Part B Which of the flowerbeds will take more wood to the frame? Explain how you know. Type below: __________

Answer: A Perimeter is greater than B Perimeter.

Explanation: Area = 24. 3 x 8 = 24; 4 x 6 = 24. A Perimeter = 8 + 3 + 8 + 3 = 22 feet. B Perimeter = 4 + 6 + 4 + 6 = 20 feet. A Perimeter is greater than B Perimeter.

Review/Test – Page No. 692

Answer: 40 meter.

Answer: 78 square feet

Go Math Grade 3 Answer Key Chapter 11 Perimeter and Area is given with answers and explanations. Move with every step of solving the process to solve your problems easily. Also, you will be the topper with excessive skills if you follow Go Math Grade 3 Chapter 11 Perimeter and Area Answer Key. All chapters with explanations are available at go math answer key. Practice Go Math Grade 3 Answer Key Chapter 11 Perimeter and Area Extra Practice to grab more knowledge.

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Big Ideas Math Answers Grade 3 | Big Ideas Math Book 3rd Grade Answer Key

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• Chapter 1 Understand Multiplication and Division
• Chapter 2 Multiplication Facts and Strategies
• Chapter 3 More Multiplication Facts and Strategies
• Chapter 4 Division Facts and Strategies
• Chapter 5 Patterns and Fluency
• Chapter 6 Relate Area to Multiplication
• Chapter 7 Round and Estimate Numbers
• Chapter 8 Add and Subtract Multi-Digit Numbers
• Chapter 9 Multiples and Problem Solving
• Chapter 10 Understand Fractions
• Chapter 11 Understand Fraction Equivalence and Comparison
• Chapter 12 Understand Time, Liquid Volume, and Mass
• Chapter 13 Classify Two-Dimensional Shapes
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• Chapter 15 Find Perimeter and Area

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