third grade math estimation worksheets

• 3rd Grade Math Worksheets
• Estimation and rounding

Free printable estimating and rounding worksheets for 3rd Grade math practice

Hi there, math teachers and parents! Do you need some awesome math activities to help your 3 rd graders learn and master numbers quickly? If yes, then you are in the right place. In this article, we will offer you Grade 3 free printable estimating and rounding worksheets to help your 3rd graders practice and learn how to estimate and round numbers like a pro.

Estimating and rounding are two essential skills that 3rd graders need to learn and master. They help you work with large numbers quickly and easily without having to do complicated calculations. They also help you check your answers and make sense of real-world problems.

It is important to learn these two vital math skills in a fun and engaging way to enhance kids’ mastery and eagerness to solve. That is no problem. Mathskills4kids.com will provide your children with amazing strategies for quickly mastering and solving estimation and rounding problems.

But what exactly are estimating and rounding, and how do you do them? Let's find out!

Why estimating and rounding are important skills for 3rd Graders

Estimating means making a reasonable guess about how much or how many something is. For example, if you see a jar of candy, you can estimate how many pieces are inside by looking at the size and shape of the jar and the candy. Estimating helps you get an idea of the quantity or value of something without having to count or measure it exactly.

Rounding means making a number simpler or easier to work with by changing it to the nearest multiple of 10, 100, or 1000 . For example, if you have 487 pencils, you can round it to 500 pencils by changing the last two digits to zero. Rounding helps you simplify large numbers and make them easier to add, subtract, multiply, or divide.

Estimating and rounding are important skills for 3rd graders because they help you:

• Develop number sense and place value understanding
• Compare and order numbers
• Solve word problems involving addition, subtraction, multiplication, or division
• Make reasonable predictions and judgments
• Communicate your thinking clearly and effectively

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How to estimate numbers using different strategies.

Different ways and strategies exist to estimate numbers depending on the situation and purpose. Here are some common strategies that you can use:

• Front-end estimation : This means using the first digit of each number to estimate the sum or difference . For example, if you want to estimate 234 + 567, you can use front-end estimation by adding the first digits of each number: 200 + 500 = 700. This gives you an approximate answer that is close to the actual answer of 801.
• Compatible numbers : This means using numbers that are easy to add, subtract, multiply, or divide mentally. For example, if you want to estimate 48 x 25, you can use compatible numbers by rounding 48 to 50 and 25 to 20: 50 x 20 = 1000. This gives you an approximate answer that is close to the actual answer of 1200.
• Benchmark numbers : This means using numbers that are familiar or easy to work with as reference points. For example, if you want to estimate how many cups of water are in a gallon, you can use benchmark numbers by knowing there are 4 cups in a quart and 4 quarts in a gallon: 4 x 4 = 16 cups. This gives you an exact answer that is easy to remember.

How to round numbers to the nearest ten, hundred, or thousand

Rounding numbers is another way to estimate numbers by making them simpler or easier to work with. Here are the steps to round numbers to the nearest ten, hundred, or thousand :

• Identify the place value that you want to round to. For example, if you want to round to the nearest ten, look at the tens place.
• Look at the digit to the right of the place value you want to round to. For example, if you want to round to the nearest ten, look at the ones place.
• If the digit is 5 or more, increase the digit in the place value you want to round to by one. For example, if you want to round 37 to the nearest ten, look at the ones place, which is 7. Since it is more than 5, increase the digit in the tens place, i.e., 3 by one: 3 + 1 = 4.
• If the digit is less than 5, keep it in the place value you want to round to as it is. For example, if you want to round 32 to the nearest ten, look at the ones place, which is 2. Since it is less than 5, keep the digit in the tens place, 3 as it is: 3.
• Change all the digits to the right of the place value you want to round to zero. For example, if you want to round 37 to the nearest ten, change the ones place to zero: 40. If you want to round 32 to the nearest ten, change the ones place to zero: 30.

Fun and engaging activities to practice estimating and rounding

Now that you know how to estimate and round numbers, it's time to practice and have fun with them! Here are some fun and engaging activities that you can do at home or at school to practice estimating and rounding :

• Estimation jar : Fill a jar with small objects like candy, marbles, or beans. Ask your friends or family members to estimate how many objects are in the jar by looking at them. Please write down your estimates and compare them with the actual count. See who has the closest estimate and reward them with some of the objects from the jar!
• Rounding bingo : Make a bingo card with different numbers on it. Have someone call out numbers rounded to the nearest ten, hundred, or thousand. Mark the numbers on your card that match the called-out numbers. The first one to get five in a row, column, or diagonal wins!

Go around the stations and write down your estimates. Then check your estimates with the actual measurements or times. See how close you are and try to improve your estimation skills!

Free printable estimating and rounding worksheets to reinforce Grade 3 math practice

One of the best ways to help your 3rd graders master estimating and rounding is to provide them with plenty of practice. That's why we have selected a set of free printable estimating and rounding worksheets for grade 3 math practice from Mathskills4kids.com, covering all the estimating and rounding topics.

You can download and print these worksheets for your kids at home or in the classroom. Here are some of the worksheets you will find in our collection:

• Rounding to the nearest ten, hundred, and thousand : This worksheet helps students practice rounding whole numbers to the nearest place value . It includes a number line to help them visualize the process of rounding. Students have to round each number and write the answer in the box.
• Rounding money to the nearest dollar : This worksheet helps students practice rounding money amounts to the nearest dollar. It includes pictures of coins and bills to help them count the money. Students have to round each amount and write the answer in the box.
• Rounding puzzles word problems : This worksheet helps students practice rounding numbers in the context of word problems. It includes four puzzles that require students to round numbers and use them to solve a riddle. Students will write the rounded numbers and the answer to the riddle in the spaces provided.
• Estimate the sum of whole numbers by rounding word problems : This worksheet helps students practice estimating the sum of two or more whole numbers by rounding them first. It includes four-word problems that require students to estimate the total number of items, people, or animals in a given situation. Students have to write their estimates and explain how they got them.
• Estimating the differences of whole numbers by rounding word problems : This worksheet helps students practice estimating the difference between two whole numbers by rounding them first. It includes four-word problems that require students to estimate how many items, people, or animals are left after some are taken away or used in a given situation. Students have to write their estimates and explain how they got them.
• How to solve inequalities using estimation : This worksheet helps students practice solving inequalities using estimation . It includes four inequalities that require students to estimate the value of a variable that makes the inequality true. Students have to write their estimates and check if they are correct by plugging them into the inequality.
• Estimating products : This worksheet helps students practice estimating the product of two whole numbers by rounding them first. It includes four pairs of numbers requiring students to estimate their product using compatible numbers or front-end estimation. Students have to write their estimates and compare them with the actual products.
• Estimating quotients : This worksheet helps students practice estimating the quotient of two whole numbers by rounding them first. It includes four pairs of numbers requiring students to estimate their quotient using compatible numbers or front-end estimation. Students have to write their estimates and compare them with the actual quotients.
• Identify reasonable answers for two-step word problems : This worksheet helps students practice identifying reasonable answers for two-step word problems that involve estimating and rounding . It includes four-word problems that require students to use two different operations (addition, subtraction, multiplication, or division) to find an answer. Students have to choose the most reasonable answer from the four options and explain why they chose it.

How estimating and rounding can help 3rd graders in real life

Estimating and rounding are not only useful for math class but also for real-life situations. Here are some examples of how estimating and rounding can help 3rd graders in real life :

• Shopping : You can use estimating and rounding to plan your budget and compare prices. For example, if you want to buy a shirt that costs $12.99 and a pair of jeans that costs $24.99, you can estimate the total cost by rounding each item to the nearest dollar: $13 + $25 = $38. This gives you an idea of how much money you need and how much change you will get.

You can also estimate the amount of butter by using a knife to cut a stick of butter into four equal parts: 1/4.

• Traveling : When you travel or go on a trip, you can use estimating and rounding to plan your time and distance. For example, if you want to go to a museum 15 miles away from your house and it takes about 20 minutes to drive one mile, you can estimate how long it will take to get there by rounding the distance to the nearest ten: 20 miles. Then multiply by 20 minutes: 20 x 20 = 400 minutes. Then divide by 60 minutes: 400 / 60 = 6 hours and 40 minutes.

Bonus: More resources, activities, and free printable estimating and rounding worksheets to practice at home and school

If you are looking for more ways to help your 3rd grader master estimating and rounding skills, you are in luck! There are plenty of online and offline resources, activities, and free printable estimating and rounding worksheets that you can use to practice at home and school in a fun and effective way.

Here are some of them:

You can also watch videos that explain how to estimate and round numbers using different methods . Visit https://www.mathplayground.com/index_rounding_estimation.html to explore more.

You can also track your progress and earn badges as you learn. Visit https://www.khanacademy.org/math/cc-third-grade-math/imp-addition-and-subtraction/imp-rounding/e/rounding-challenge to start learning.

You can also find fun activities like making an estimation jar, playing estimation bingo, or creating a rounding rap. Visit https://www.education.com/resources/third-grade/rounding-and-estimation/ to browse more.

Thank you for sharing the links of MathSkills4Kids.com with your loved ones. Your choice is greatly appreciated.

Estimating and rounding are important skills for 3rd graders to learn and practice. They help students develop number sense, mental math, problem-solving, and real-world applications.

Students can estimate or round numbers quickly and accurately using different strategies, such as benchmarks, front-end estimation, compatible numbers, or rounding rules. By using fun and engaging activities, such as games, puzzles, task cards, or worksheets, students can reinforce their estimating and rounding skills and enjoy learning math.

We hope you found this article helpful and informative. If you did, please share it with your friends, family, or colleagues who might also benefit from it. And remember to check out our website, Mathskills4kids.com, for free printable math worksheets for 3rd grade and other grades.

Thank you for reading, and happy estimating and rounding!

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Common Core Standards: Grade 3 Number & Operations in Base Ten , Grade 3 Operations & Algebraic Thinking

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This worksheet originally published in Math Made Easy for 3rd Grade by © Dorling Kindersley Limited .

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Estimation is the process of making a rough calculation or guess about the value of something. It is a useful skill in math and everyday life, as it allows us to quickly approximate quantities without needing to know the exact answer. Estimation is often used to check the reasonableness of a calculation or to get a quick sense of the size of a number.

Types of Estimation

There are two main types of estimation: rounding and front-end estimation .

Rounding involves changing a number to a nearby value that is easier to work with. For example, rounding 37 to the nearest ten gives us 40. Rounding can be used to quickly estimate sums, differences, products, or quotients.

Front-End Estimation

Front-end estimation involves looking at the leftmost digits of a number to make an estimate. For example, to estimate 385 + 247, we can add 300 and 200 to get an estimate of 500.

Importance of Estimation

Estimation helps us to quickly assess the reasonableness of an answer and catch any glaring errors in our calculations. It is also a valuable skill in real-world situations, such as when shopping, budgeting, or making quick calculations on the go.

Overall, estimation is a practical and important skill that allows us to make quick, educated guesses about numbers and quantities.

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