my homework lesson 9 estimate quotients answer key

Estimating Quotients Worksheets

How to Estimate the Outcome of Division - The division is usually thought of being the most difficult of the four basic mathematical operations. It is pretty easy to learn how to add, subtract, or even multiply. But the division is a bit more of technical operation. We need to identify first that in what number of sectors the dividend should be divided. The dividend is the number that is to be divided while the divisor is one that divides. Then comes the part of thinking whether the dividend will be evenly divided, and the answer will be a whole number or not. But before doing all of this, the answer to a division sum can also be estimated. It is pretty easy to estimate the answer to a division sum, especially one involving a larger number of digits. All you have to do is write both the dividend and the divisor as a fraction and make the dividend the numerator and the divisor as the denominator. Then divide each digit of the dividend by its corresponding digit in the divisor section. This way, you can have a really quick estimated answer to your sum. This is a quicker method of solving a division sum and getting an approximately accurate answer.

Basic Lesson

Demonstrates how to estimate quotients through the use of round estimation. Also includes practice problems. Calculate 126 ÷ 7. This can be estimated to 130/10. On dividing this, we get 13. Check this with the given problem. 13 x 7 = 91; choose a higher quotient.

Intermediate Lesson

Uses a larger more difficult numbers to round than the basic lesson.

Independent Practice 1

20 problems ask you to estimate quotients. The answers can be found below.

Independent Practice 2

20 practice problems that review estimating estimating quotients. The answers can be found below.

Homework Worksheet

12 problems to reinforce the lessons and practice pages. An example is provided.

10 problems that test quotient estimation skills.

Homework and Quiz Answer Key

Answers for the homework and quiz.

Lesson and Practice Answer Key

Answers for both lessons and both practice sheets.

What's In Tap Water?

There are 104 chemical elements found in the entire universe. How many of those same chemical elements can you find in the tap water in the state of New Jersey? Approximately 98! Makes you think twice before turning on the tap now doesn't it?

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Explanation:

308.3  ÷ 15

Estimate the quotient.

63.5 ÷ 5

57.8 ÷ 81

172.6 ÷ 39

43.6 ÷ 8

2.8 ÷ 6

467.6  ÷ 8

209.3 ÷ 48

737.5 ÷ 9

256.1  ÷ 82

Taylor uses 645.6 gallons of water in 7 days. Suppose he uses the same amount of water each day. About how much water does Taylor use each day?

On a road trip, Sandy drives 368.7 miles. Her car uses a total of 18 gallons of gas. About how many miles per gallon does Sandy’s car get?

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Approximate Quotients

Related Topics: Lesson Plans and Worksheets for Grade 5 Lesson Plans and Worksheets for all Grades More Lessons for Grade 5 Common Core For Grade 5

Examples, solutions, and lessons to help Grade 5 students learn how to use basic facts to approximate quotients with two-digit divisors.

Common Core Standards: 5.NBT.1, 5.NBT.2, 5.NBT.6

New York State Common Core Math Grade 5, Module 2, Lesson 18 Worksheets for Grade 5

Lesson 18 Application Problem Note: This Application Problem is a review of G5–M2–Lesson 17, which focused on estimation of a three-digit total by a two-digit divisor. Sandra bought 38 DVD movies for $874. Give an estimate of the cost of each DVD movie.

In this lesson, Lesson 18, students will estimate the division of a four-digit number by a two-digit divisor. Lesson 18 Concept Development Problem 1: 8,095 ÷ 23 Problem 2: 2,691 ÷ 48 Problem 3: 5,484 ÷ 71 Problem 4: 9,215 ÷ 95

Lesson 18 Homework This video demonstrates how to estimate quotients using basic facts.

• Estimate the quotient for the following problems. The first one is done for you. a. 8,328 ÷ 41 ≈ 8,000 ÷ 40 = 200 b. 2,109 ÷ 23 ≈ _________ ÷ _________ = _________ c. 8,215 ÷ 38 ≈ _________ ÷ _________ = _________ d. 3,861 ÷ 59 ≈ _________ ÷ _________ = _________

• 91 boxes of apples hold a total of 2,605 apples. Assuming each box has about the same number of apples, estimate the number of apples in each box.

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Texas Go Math Grade 4 Lesson 9.4 Answer Key Estimate Quotients Using Compatible Numbers

efer to our Texas Go Math Grade 4 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 4 Lesson 9.4 Answer Key Estimate Quotients Using Compatible Numbers.

Essential Question

How can you use compatible numbers to estimate quotients? Answer: we can use the compatible numbers to estimate quotient. we can choose the number that is close to the dividend and easy to divide by the divisor.

Unlock the Problem

A horse’s heart beats 132 times in 3 minutes. About how many times does it beat in 1 minute?

You can use compatible numbers to estimate quotients.

Compatible numbers are numbers that are easy to compute mentally.

• Will a horse’s heart beat more or fewer than 132 times in 1 minute? Answer: Yes Explanation: 132 ÷ 3 = 44 44 times in 1 minute compatible numbers can use compatible numbers to estimate quotients if compatible number 120 120 ÷ 3 = 40 if compatible number 150 150 ÷ 3 = 50

• What operation will you use to solve the problem? Answer: Division   ‘÷’ Explanation: Division operation will you use to solve the problem. The division is a method of distributing a group of things into equal parts.

Estimate. 132 ÷ 3 STEP 1 Find a number close to 132 that divides easily by 3. Use basic facts. 12 ÷ 3 is a basic fact. 120 divides easily by 3. 15 ÷ 3 is a basic fact. 150 divides easily by 3. Think: Choose 120 because it is closer to 132. Answer: 120 ÷ 3 = 40

STEP 2 Use place value. 120 = ___________ tens 12 ÷ 3 = ___________ 12 tens ÷ 3 = __________ tens 120 ÷ 3 = __________ Answer: 40 120 = 12 tens 12 ÷ 3 = 4 12 tens ÷ 3 = 4 tens 120 ÷ 3 = 40

So, a horse’s heart beats about ___________ times a minute Answer: 40 times Explanation: 120 = 12 tens 12 ÷ 3 = 4 12 tens ÷ 3 = 4 tens 120 ÷ 3 = 40

Example 2 Use compatible numbers to find two estimates that the quotient is between. 1,382 ÷ 5

STEP 1 Find two numbers close to 1,382 that divide easily by 5. ___________ ÷ 5 is a basic fact. 1,000 divides easily by 5.

___________ ÷ 5 is a basic fact. 1500 divides easily by 5.

1,382 is between ___________ and ___________. So, 1,382 ÷ 5 is between ___________ and ___________. Answer: 10 ÷ 5 is a basic fact. 1,000 divides easily by 5. 15 ÷ 5 is a basic fact. 1500 divides easily by 5. 1,382 is between 1000 and 1500. So, 1,382 ÷ 5 is between 1000 and 1500.

STEP 2 Divide each number by 5. Use place value. 1,000 ÷ 5 ___________ hundreds ÷ 5 = ___________ hundreds, or ___________ 1,500 ÷ 5 ___________ hundreds ÷ 5 = ___________ hundreds, or ___________ Answer: 15 hundreds ÷ 5 = 3 hundreds, or 1,500 ÷ 5 10 hundreds ÷ 5 = 2 hundreds, or 1000 ÷ 5 Explanation: 10 ÷ 5 is a basic fact. 1,000 divides easily by 5. 15 ÷ 5 is a basic fact. 1500 divides easily by 5. 1,382 is between 1000 and 1500. So, 1,382 ÷ 5 is between 1000 and 1500.

Mathematical Processes Explain which estimate you think is more reasonable. Answer: Basic fact method of thinking is more reasonable. To find a value that is close enough to the right answer, usually with some thought or calculation involved is called Estimate.

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Estimating Quotients 4th Grade Question 1. Estimate. 1,718 ÷ 4 __________ is close to 1,718. __________ is close to 1718. Choose 1,600 because ___________________

Think: What number close to 1,718 is easy to divide by 4? What basic fact can you use? __________ ÷ 4 What basic fact can you use? __________ ÷ 4

16 ÷ 4 = ___________ 1600 ÷ ___________ = ___________ 1,718 ÷ 4 is about ___________ Answer: 400 Estimate. 1,718 ÷ 4 1600 is close to 1,718. 1800 is close to 1718. Choose 1,600 because ___________________ Think: What number close to 1,718 is easy to divide by 4? What basic fact can you use? 16 ÷ 4 What basic fact can you use? 1600 ÷ 4 16 ÷ 4 = 4 1600 ÷ 4 = 400 1,718 ÷ 4 is about 400 Explanation: STEP 1 Find a number close to 1,718 that divides easily by 4. Use basic facts. STEP 2 Divide each number by 4. Use place value. 1,000 ÷ 4

Mathematical Processes Explain how your estimate change if the problem were 1,918 ÷ 4 Answer: 500 Estimate. 1,918 ÷ 4 1,800 is close to 1,918. 2,000 is close to 1,918. Choose 2,000 because compatible number Explanation: STEP 1 Find a number close to 1,918 that divides easily by 4. Use basic facts. STEP 2 Divide each number by 4. Use place value. 1,000 ÷ 4 Think: What number close to 1,918 is easy to divide by 4? What basic fact can you use? 20 ÷ 4 What basic fact can you use? 2,000 ÷ 4 20 ÷ 4 = 5 2,000 ÷ 4 = 500 1,918 ÷ 4 is about 500

Use compatible numbers to estimate the quotient.

Question 2. 455 ÷ 9 Answer: 50 Estimate. 450 ÷ 9 450 is close to 455. Choose 450 because the compatible number Explanation: STEP 1 Find a number close to 455 that divides easily by 9. Use basic facts. STEP 2 Divide each number by 9. Use place value. 100÷ 9 Think: What number close to 455 is easy to divide by 9 What basic fact can you use? 45 ÷ 9 What basic fact can you use? 450 ÷ 9 45 ÷ 9 = 5 450 ÷ 9 = 50 455 ÷ 9 is about 50

4th Grade Compatible Numbers Question 3. 1,509 ÷ 3 Answer: 500 Explanation: Estimate. 1,509 ÷ 3 1500 is close to 1,509. Choose 1500 because the compatible number Think: What number close to 1500 is easy to divide by 3 What basic fact can you use? 15 ÷ 3 What basic fact can you use? 1500 ÷ 3 15 ÷ 3 = 5 1500 ÷ 3 = 500 1500 ÷ 3 is about 500

Question 4. 176 ÷ 8 Answer: 20 Explanation: Estimate. 176 ÷ 8 160 is close to 176. Choose 160 because compatible number Think: What number close to 160 is easy to divide by 8 What basic fact can you use? 16 ÷ 8 What basic fact can you use? 160 ÷ 8 16 ÷ 8 = 2 160 ÷ 8 = 20 176 ÷ 8 is about 20

Question 5. 2,795 ÷ 7 Answer: 400 Explanation: Estimate. 2,795 ÷ 7 2,800 is close to 2,795. Choose 2800 because compatible number Think: What number close to 2800 is easy to divide by 7 What basic fact can you use? 28 ÷ 7 What basic fact can you use? 2800 ÷ 7 28 ÷ 7 = 4 2800 ÷ 7 = 400 2,795 ÷ 7 is about 400

Problem Solving

Algebra Estimate to compare. Write <, >, or =.

Question 9. Mr. Morrison put 4,689 miles on his car the first 6 months he owned it. if he drove the same number of miles each month, about how many miles did he drive in one month? Use compatible numbers to find two estimates that the quotient is between. Answer: About 800 miles. Explanation: Estimate. 4,689 ÷ 6 4,800 is close to 4,689. Choose 4800 because compatible number Think: What number close to 4800 is easy to divide by 6 What basic fact can you use? 48 ÷ 6 What basic fact can you use? 4,800 ÷ 6 48 ÷ 6 = 8 4800 ÷ 6 = 800 4,689 ÷ 6 is about 800

Question 10. Multi-Step Leigh wants to buy a bike for $429 and a helmet for $38. If she saves S8 a week, about how many weeks will it take her to save the money to buy the bike and helmet? Answer: about 60weeks $429 + $38 = $467 Explanation: Estimate. 467 ÷ 8 480 is close to 467. Choose 480 because compatible number Think: What number close to 480 is easy to divide by 8 What basic fact can you use? 48 ÷ 8 What basic fact can you use? 480 ÷ 8 48 ÷ 8 = 6 480 ÷ 8 = 60 480 ÷ 8 is about 60

Use the table for 11-14.

Question 11. About how many times does a chicken’s heart beat in 1 minute? Answer: 275 times does a chicken’s heart beat in 1 minute Explanation: Number of heart beats of chicken in 5 minutes 1375 ÷ 5 = 275 275 times does a chicken’s heart beat in 1 minute

Question 12. Multi-Step About how many 6 times does a cow’s heart beat in 2 minutes? Answer: about more then 20 Explanation: Cow heart beat in 5 minutes 325 ÷ 5 65 times per minute 65 x 2 =130 130 ÷ 6 = 21.6

Question 13. H.O.T. About how many times faster does a cow’s heart beat than a whale’s? Answer: Cow heart beat is about more than 3 times faster than whale. Explanation: Cow heart beat in 5 minutes 325 ÷ 5 = 21.6 whale heart beat in 5 minutes 31 ÷ 5 = 6.2 Cow heart beat is about more then 3 times faster then whale

Question 14. Write Math What’s the Question? The answer is about 100 beats in 1 minute. Answer: Which animal heart beat is more then 100 times in minute? Explanation: Dog heart beat in 5minutes 520 ÷ 5 =104 So, Dog heart beat is 100 in 1 minute.

Estimate Quotients Using Compatible Numbers Lesson 9.4 Answer Key Question 15. Use Tools Jamie and his two brothers divided a package of 126 toy cars equally. About how many cars did each of them receive? Answer: 42 toy cars Explanation: Jamie and his two brothers divided a package of 126 toy cars equally. Number of cars each of them receive 126 ÷ 3 = 42

Daily Assessment Task

Fill in the bubble completely to show your answer.

Question 17. Reasoning Dakota has 105 quills that she will use to make bracelets. She needs 4 quills for each. About how many bracelets can she make? (A) about 20 (B) about 29 (C) about 16 (D) about 25 Answer: Option (D) Explanation: Dakota has 105 quills that she will use to make bracelets. She needs 4 quills for each. Number of bracelets she can make 105 ÷ 4

Question 18. Nick and his three friends divided 252 cards equally. About how many cards did each of them receive? (A) about 55 (B) about 20 (C) about 60 (D) about 380 Answer: Option (C) Explanation: Nick and his three friends divided 252 cards equally. Number of cards each of them receive 252 ÷ 4 = 63

Question 19. Multi-Step A carpenter has 168 doorknobs in his workshop. of those doorknobs, 96 are round and the rest are square. If he wants to place 7 square doorknobs in each bin, about how many bins would he need? (A) about 7 (B) about 23 (C) about 10 (D) about 13 Answer: Option (C) Explanation: A carpenter has 168 doorknobs in his workshop, of those doorknobs, 96 are round and the rest are square. 168 – 96 = 72 If he wants to place 7 square doorknobs in each bin, Total bins he need 72 ÷ 7 = about 10

TEXAS Test Prep

Question 20. A monkey’s heart beats 1,152 times in 6 minutes. Which is the best estimate of the number of times the monkey’s heart beats in 1 minute? (A) about 1,000 (B) about 200 (C) about 100 (D) about 2,000 Answer: Option(B) Explanation: A monkey’s heart beats 1,152 times in 6 minutes. The best estimate of the number of times the monkey’s heart beats in 1 minute 1,152 ÷ 6 = 192 Estimate: 200

Texas Go Math Grade 4 Lesson 9.4 Homework and Practice Answer Key

Question 1. 486 ÷ 6 Answer: 80 Explanation: Compatible numbers are close in value to the actual numbers that make estimating the answer and computing problems easier. 486 ÷ 6 480 ÷ 6 = 80

Question 2. 2,239 ÷ 7 Answer: 300 Explanation: Compatible numbers are close in value to the actual numbers that make estimating the answer and computing problems easier. 2,239÷ 7 2,100 ÷ 7 = 300

Question 3. 2,930 ÷ 4 Answer: 700 Explanation: Compatible numbers are close in value to the actual numbers that make estimating the answer and computing problems easier. 2,940 ÷ 4 2,800 ÷ 4 = 700

Question 4. 5,216 ÷ 8 Answer: 650 Explanation: Compatible numbers are close in value to the actual numbers that make estimating the answer and computing problems easier. 5,216 ÷ 8 5,200 ÷ 8 = 650

Question 5. 396 ÷ 7 Answer: 60 Explanation: Compatible numbers are close in value to the actual numbers that make estimating the answer and computing problems easier. 396 ÷ 7 420 ÷ 7 = 60

Question 6. 1,739 ÷ 9 Answer: 200 Explanation: Compatible numbers are close in value to the actual numbers that make estimating the answer and computing problems easier. 1,739÷ 9 1,800 ÷ 9 1,800 ÷ 9 = 200

Estimate to compare. Write <, >, or =.

Question 11. George stacked 126 boxes in a truck in 3 hours. About how many boxes per hour did he stack? Answer: about 40 boxes per hour Explanation: George stacked 126 boxes in a truck in 3 hours. Number of boxes per hour he stack basic fact you can use to estimate 126 ÷ 3 = 42 120 ÷ 3 = 40

Question 12. Casey stacked 441 books equally on 9 shelves. About how many books are on each shelf? Answer: about 50 boos are on each shelf Explanation: Casey stacked 441 books equally on 9 shelves. Number of books on each shelf basic fact you can use to estimate 441 ÷ 9 450 ÷ 9 = 50

Lesson Check

Question 13. Marcie vent to the golf course to practice putting. If she made 372 putts in 4 hours, about how many putts did she make each hour? (A) about 70 (B) about 100 (C) about 80 (D) about 90 Answer: Option (D) Explanation: Marcie made 372 putts in 4 hours, Number of putts she make each hour 372 ÷ 4 basic fact you can you to estimate 36 ÷ 4 = 9 360 ÷ 4 = 90

Question 14. ‘Wendy and Bother members of her scout troop sold a total of 2,684 boxes of cookies. About how many boxes did each member sell if each scout sold about the same number of boxes? (A) about 500 (B) about 300 (C) about 400 (D) about 200 Answer: Option(A) Explanation: ‘Wendy and Bother members of her scout troop sold a total of 2,684 boxes of cookies. Total boxes each member sell, if each scout sold about the same number of boxes basic fact you can use to estimate 25 ÷ 5 = 5 2500 ÷ 5 = 500

Question 15. Mr. Danielson drove 1,998 miles for his job last week. If he drove about the same number of miles each day, about how many miles did he drive each of the 7 days? (A) about 500 miles (B) about 300 miles (C) about 400 miles (D) about 200 miles Answer: Option(B) Explanation: Mr. Danielson drove 1,998 miles for his job last week. If he drove about the same number of miles each day, Number of miles he drive each of the 7 days 1998 ÷ 7 basic fact you can use to estimate 21 ÷ 7 = 3 2100 ÷ 7 = 300

Question 16. Sharon has 572 sheets of construction paper to make autograph books for the business fair. Each book will use 8 sheets of paper. About how many books can Sharon make? (A) about 70 (B) about 60 (C) about 80 (D) about 50 Answer: Option(A) Explanation: Sharon has 572 sheets of construction paper to make autograph books for the business fair. Each book will use 8 sheets of paper. Number of books can Sharon make 572 ÷ 8 basic fact you can use to estimate 56 ÷ 8 = 7 560 ÷ 8 = 70

Question 17. Multi-Step A total of 8,644 people went to the football game. of those people, 5,100 sat on the home side and the rest sat on the visitor’s side. If they filled 8 equal-sized sections on the visitor’s side, about how many people sat in each of these sections? (A) about 500 (B) about 600 (C) about 1,100 (D) about 400 Answer: option(D) Explanation: A total of 8,644 people went to the football game, of those people, 5,100 sat on the home side and the rest sat on the visitor’s side. 8644 – 5100 = 3544 If they filled 8 equal-sized sections on the visitor’s side, about how many people sat in each of these sections 3,544 ÷ 8 basic fact to estimate 32 ÷ 8 = 4 320 ÷ 8 = 400

Question 18. Multi-Step If Cade shoots 275 free throw baskets in 2 hours, about how many can he shoot in 5 hours? (A) about 700 (B) about 140 (C) about 660 (D) about 600 Answer: Option(A) Explanation: If Cade shoots 275 free throw baskets in 2 hours, Number of shoots in 1 hour = 275 ÷ 2 = 137.5 Total shoots in 5 hours = 137.5 x 5 = 687.5 Estimate of 687 is 700.

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Math Expressions Grade 4 Unit 3 Lesson 8 Answer Key Estimate to Check Quotients

Solve the questions in Math Expressions Grade 4 Homework and Remembering Answer Key Unit 3 Lesson 8 Answer Key Estimate to Check Quotients to attempt the exam with higher confidence. https://mathexpressionsanswerkey.com/math-expressions-grade-4-unit-3-lesson-8-answer-key/

Math Expressions Common Core Grade 4 Unit 3 Lesson 8 Answer Key Estimate to Check Quotients

Math Expressions Grade 4 Unit 3 Lesson 8 Homework

Solve by any method on a separate sheet of paper. Then check your answer by rounding and estimating.

Estimate to Check Quotients Grade 4 Answer Key Math Expressions  Question 5.

Solve. Show your work

Math Expressions Grade 4 Unit 3 Lesson 8 Remembering

Add or subtract.

Sketch an area model for each exercise. Then find the product.

Explanation: Area = length x breath So, 36 x 92 = 3312

Solve using any method.

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McGraw Hill My Math Grade 4 Chapter 6 Lesson 2 Answer Key Estimate Quotients

All the solutions provided in McGraw Hill Math Grade 4 Answer Key PDF Chapter 6 Lesson 2 Estimate Quotients  will give you a clear idea of the concepts.

McGraw-Hill My Math Grade 4 Answer Key Chapter 6 Lesson 2 Estimate Quotients

Math in My World

Helpful Hint 64 and 8 are members of a fact family. 8 × 8 = 64 64 ÷ 8 = 8

Helpful Hint 12 ÷ 6 = 2, so 1,200 ÷ 6 = 200

Another Way Use a basic fact and place value. $1,168 ÷ 6 ← What basic multiplication fact is close to the numbers in the problem? 6 × 2 = 12 6 × 20 = 120 6 × ___ = 1,200 So, each tea set is worth about _____. Answer: Each tea set is worth about 200.

Explanation: $1,168 ÷ 6 6 × 2 = 12 6 × 20 = 120 6 × 200 = 1,200 So, each tea set is worth about 200.

Guided Practice

Question 1. Estimate. Check your estimate using multiplication. 161 ÷ 4 ____ ÷ ____ = ____ Check: ____ × ____ = _____ Answer: The estimated answer is 40.

Explanation: Given, 161 ÷ 4 160 ÷ 4 = 40 Check: 40 × 4 = 160

McGraw Hill My Math Grade 4 Chapter 6 Lesson 2 My Homework Answer Key

Estimate. Check your estimates using multiplication.

Question 1. 184 ÷ 9 Answer: The estimated division is 20.

Question 2. $149 ÷ 5 Answer: The estimated division is 30.

Question 3. 241 ÷ 8 Answer: The estimated division is 30.

Question 4. $422 ÷ 6 Answer: The estimated division is $70.

Question 5. 637 ÷ 8 Answer: The estimated division is 80.

Question 6. $3,611 ÷ 6 Answer: The estimated division is $600.

Question 7. 1,175 ÷ 4 Answer: The estimated division is 300.

Question 8. 5,421 ÷ 9 Answer: The estimated division is 600.

Question 9. $2,782 ÷ 7 Answer: The estimated division is 400.

Algebra Use mental math to find an estimate of the unknown number.

Question 10. 8,122 ÷ 9 = d d is about _____ Answer: d is about 900.

Explanation: Given, 8,122 ÷ 9 = d d = 900

Question 11. 3,030 ÷ m = 600 m is about _____ Answer: m is about 5.

Explanation: Given, 3,030 ÷ m = 600 3030 ÷ 600 = m m = 3000 ÷ 600 m = 5

Question 12. 4,883 ÷ 7 = h h is about _____ Answer: h is about 700.

Explanation: Given, 4,883 ÷ 7 = h 4900 ÷ 7 = h h = 900

Problem Solving

Question 13. Mathematical PRACTICE 4 Model Math In August, 2,760 people attended concerts at Cooper Arena. About the same number of people went to see each of the 5 concerts. About how many people attended each concert? Answer: There are around 600 people attended each concert.

Explanation: Given, There are 2760 people who attended concerts at cooper Arena. let us assume there are around 3000 people who attended concerts at cooper Arena. 3000 ÷ 5 = 600 people attended each concert.

Question 14. A mosaic at the art museum is divided into 6 sections that each contain about the same number of tiles. There are 2,889 tiles total in the mosaic. About how many tiles are in each section? Answer: 500 tiles are in each section.

Explanation: The tiles could be divided into 6 sections with about 500  tiles each since 3000 ÷  6 = 500 tiles.

Question 15. Mr. Morgan owns an ice-cream shop. His shop made $1,380 last weekend. Mr. Morgan charges $2 for each scoop of ice cream. About how many scoops of ice cream were sold last weekend? Answer: $2760 scoops of ice cream were sold last weekend.

Explanation: Given, Mr. Morgan’s shop made $1,380 last weekend. Mr. Morgan charges $2 for each scoop of ice cream. To find: About how many scoops of ice cream were sold last weekend? $ 1380 × $ 2 = $ 2760 scoops of ice cream.

Vocabulary Check

Question 16. Circle the compatible numbers you could use to estimate 3,616 ÷ 9. 3,700 ÷ 9 3,600 ÷ 9 3,620 ÷ 9 Answer: 3,600 ÷ 9

Test Practice

Question 17. Mrs. Scholl graded 632 tests during the school year. She had 3 helpers. About how many tests did each helper grade? A. 315 tests B. 310 tests C. 210 tests D. 200 tests Answer: 210 tests.

Explanation: No of tests during the school year is 632 tests. No of helpers = 3 To find: how many tests did each helper grade? 632 ÷ 3 = 210.66 which is approximately 210 tets.

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