problem solving rounding to the nearest 100

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Rounding to the nearest 100 Worksheets

Welcome to our Rounding to the nearest 100 Worksheets page. Here you will find a wide range of free printable rounding Worksheets, which will help your child learn to round numbers to the nearest hundred.

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When you are rounding a number to the nearest 100, you are trying to find out which multiple of 100 your number is closest to.

How to round a number to the nearest 100

Look at the tens digit.

• if it is less than 5 then round the number down by changing the tens digit and ones digit to zero;
• if it is 5 or more then round the number up by adding one on to the hundreds digit and changing the tens and ones digit to zero.
• 287 rounds up to 300 because the tens digit is 8.
• 1629 rounds down to 1600 because the tens digit is 2.
• 950 rounds up to 1000 because the tens digit is a 5.

Here you will find a range of free printable math worksheets to help your child learn to round numbers to the nearest hundred.

These sheets are carefully graded so that the easier sheets come first and give extra support.

The numbers in Sheets 1 to 4 go up to 1000. Sheet 5 goes up to 10,000.

Each sheets comes with a separate printable answer sheet.

Using these sheets will help your child to:

• round numbers to the nearest 100;
• practise rounding numbers to the nearest 10;
• position numbers to 1000 on a number line.

All the free Rounding numbers Worksheets in this section support the Elementary Math Benchmarks.

Want to test yourself to see how well you have understood this concept?.

• Try our NEW quick quiz at the bottom of this page.

Quicklinks to ...

• Rounding to the nearest 10 and 100 Worksheets
• Easier/Harder Rounding Worksheets
• More related resources

Rounding to the nearest 10 & 100 Online Quiz

• Rounding to the nearest 100 Sheet 1
• Sheet 1 Answers
• PDF version
• Rounding to the nearest 100 Sheet 2
• Sheet 2 Answers
• Rounding to the nearest 100 Sheet 3
• Sheet 3 Answers
• Rounding to the nearest 100 Sheet 4
• Sheet 4 Answers
• Rounding to the nearest 100 Sheet 5
• Sheet 5 Answers

Rounding Numbers to the nearest 10 & 100

• Rounding to the nearest 10 & 100 Sheet 1
• Rounding to the nearest 10 & 100 Sheet 2

Looking for something easier?

The rounding numbers worksheets in this section involve rounding numbers to the nearest 10.

They are at a more basic level than those on this page.

• Rounding to the nearest 10 Worksheets

Looking for something harder?

The rounding numbers worksheets in this section involve rounding numbers to the nearest 1000.

They are at a more challenging level than those on this page, and involve rounding numbers to the nearest 10, 100 & 1000.

• Rounding to the nearest 1000 worksheets
• Rounding Decimals to the nearest whole

More Recommended Math Worksheets

Take a look at some more of our worksheets similar to these.

Rounding Challenges to the nearest 10, 100 or 1000

Here is our rounding challenges collection which will give your child an opportunity to apply their rounding learning.

The challenges can be tackled individually or with a partner.

Each challenge involves using rounding knowledge and properties of numbers to work out the correct answer.

• apply their knowledge of rounding to the nearest 10, 100 or 1000;
• develop their problem solving skills;
• develop their understanding about place value and properties of numbers.

All the rounding challenges support elementary math benchmarks.

• Rounding Numbers Worksheet Challenges

Rounding Off Worksheet Generator

Here is our generator for generating your own rounding off numbers worksheets.

Our generator will create the following worksheets:

• rounding off to the nearest 10, 100, 1000 or 10000
• rounding to the nearest whole, to 1dp, or 2dp.
• rounding off to 1sf, 2sf or 3sf
• Rounding Off Numbers Worksheets

Online Rounding Practice Zone

In our Rounding Practice zone, you can practice rounding a range of numbers. You can round numbers to the nearest 10, 100 or even 1000. Want to round numbers to the nearest decimal place, you can do that too!

Select the numbers you want to practice with, and print out your results when you have finished.

You can also use the practice zone for benchmarking your performance, or using it with a group of children to gauge progress.

• Rounding Practice Zone

Our quizzes have been created using Google Forms.

At the end of the quiz, you will get the chance to see your results by clicking 'See Score'.

This will take you to a new webpage where your results will be shown. You can print a copy of your results from this page, either as a pdf or as a paper copy.

For incorrect responses, we have added some helpful learning points to explain which answer was correct and why.

We do not collect any personal data from our quizzes, except in the 'First Name' and 'Group/Class' fields which are both optional and only used for teachers to identify students within their educational setting.

We also collect the results from the quizzes which we use to help us to develop our resources and give us insight into future resources to create.

For more information on the information we collect, please take a look at our Privacy Policy

We would be grateful for any feedback on our quizzes, please let us know using our Contact Us link, or use the Facebook Comments form at the bottom of the page.

This quiz tests your knowledge and ability to round off numbers to the nearest 10 and 100.

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Rounding & Estimation Word Problems

Related Pages Math Worksheets Lessons for Fourth Grade Free Printable Worksheets

Printable “Rounding Numbers” Worksheets: Round Numbers using the Number Line Round to nearest 10 Round to nearest 100 Round to nearest 1000, 10000, 100000 Rounding Word Problems

Rounding Word Problems Worksheets

In these free math worksheets, students practice how to use rounding to estimate and check the answers to word problems.

How to use estimation or rounding? Estimation or rounding is a useful tool for checking answers because it allows you to quickly determine if an answer is reasonable or not.

Here are some steps you can follow to use estimation to check an answer: Step 1: Make sure you understand what you are being asked to find and what information you have been given. Step 2: Round any numbers given in the problem to the nearest whole number, or to the nearest ten, hundred, or thousand, depending on the level of accuracy needed. Step 3: Use mental math to perform calculations quickly. For example, if you need to add 23 and 45, round them both to 20 and 50 and add those instead. This will give you an estimate that is close to the actual answer. Step 4: Once you have an estimate, compare it to the actual answer you calculated. If the estimate is close to the actual answer, you can be confident that your calculation is correct. If the estimate is significantly different from the actual answer, you may need to review your work and make corrections.

By using estimation to check your answers, you can catch errors early and avoid making mistakes that could lead to incorrect results.

Click on the following worksheet to get a printable pdf document. Scroll down the page for more Rounding Word Problems Worksheets .

More Rounding Word Problems Worksheets

Printable (Answers on the second page.) Rounding Worksheet #1 Rounding Worksheet #2 Rounding Worksheet #3 Rounding Worksheet #4 Rounding Worksheet #5

Online Round multi-digit number Worksheet #1

Rounding Multi-digit Numbers to any place value

Rounding Word Problems Use your estimated answer for part a) to check your answer for part b).

• For the bake sale, Connie baked 144 cookies. Esther baked 49 more cookies than Connie. a. About how many cookies did Connie and Esther bake? Estimate by rounding each number to the nearest ten before adding. b. Exactly how many cookies did Connie and Esther bake?
• Raffle tickets were sold for a school fundraiser to parents, teachers, and students. 563 tickets were sold to teachers. 888 more tickets were sold to students than to teachers. 904 tickets were sold to parents. How many tickets were sold to parents, teachers, and students? a. About how many tickets were sold to parents, teachers, and students? Round each number to the nearest hundred to find your estimate. b. Exactly how many tickets were sold to parents, teachers, and students?
• From 2010 to 2011, the population of Queens increased by 16,075. Brooklyn’s population increased by 11,870 more than the population increase of Queens. a. Estimate the total combined population increase of Queens and Brooklyn from 2010 to 2011. (Round the addends to the nearest thousand to estimate.) b. Find the actual total combined population increase of Queens and Brooklyn from 2010 to 2011.
• There were 3,905 more hits on the school’s website in January than February. February had 9,854 hits. How many hits did the school’s website have during both months? a. About how many hits (roud ro the nearest thousand) did the website have during January and February? b. Exactly how many hits did the website have during January and February?
• On Sunday, 77,098 fans attended a New York Jets football game. The same day 3,397 more fans attended a New York Giants game than the Jets game. How many football fans watched the Jets and Giants play on Sunday? a. Round each number to the nearest thousand to find an estimate of how many fans there are. b. What was the actual number of fans who watched the games?

Related Lessons & Worksheets

Round to nearest 10 (2-digit) (eg. 45 -> 50) Round to nearest 10 (3-digit) (eg. 725 -> 730) Round to nearest 100 (3-digit) (eg. 651 -> 700) Round to nearest 10 or 100 (3-digit)

Round to nearest 100 (4-digit) (eg. 2,754 -> 2,800) Round to nearest 1000 (eg. 3,542 -> 4,000) Round to nearest 10, 100, 1000

Round the nearest thousands

More Printable Worksheets

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Round to the Nearest Hundred Calculator

What is a hundred, how to calculate the rounding to the nearest hundred, examples of calculations of the rounding to the nearest hundred, more or less than hundreds: other rounding tools at omni.

Omni's round to the nearest hundred calculator will give you the answer to the question, "what is the round hundred closer to a number?".

With this short article, you will learn:

• How to calculate the nearest hundred rounding;
• The various ways to round to the nearest hundred; and
• Examples of rounding to the nearest hundred.

We are sure it will be enough to teach you how to perform this easy approximation.

A hundred is a digit in the third place of the decimal system positional notation . The digits before are the units and the tens , and the following are the thousands .

In each hundred, you can find ten tens and one hundred units (surprised?): this is the magic of the decimal system.

Hundreds are the numbers that start to become hard to grasp. As humans, we live on their edges; for example:

• Our elders live to see one hundred years;
• Our countries span (in most cases) a few hundred kilometers (or miles );
• A hundred people is a sizeable crowd;
• We use a hundred as a scale in the calculations of percentages ;

And so on! Thousands feel too big!

The first positive hundred is 100 100 100 , followed suit by 200 200 200 , and so on. 0 0 0 is still a hundred, just a weird one . We can also move to the negative numbers: there, we have − 100 -100 − 100 , − 200 -200 − 200 , etc. There are 99 99 99 numbers between two neighboring hundreds. Which one is the closest to each number? Let's discover it with Omni's round to the nearest hundred calculator!

If you want to learn how to calculate the rounding to the nearest hundred, you first have to make a choice: how do we put fifty ?

Five (and its decimal multiples and submultiples) is a tricky number in all roundings, and the calculations of the rounding to the nearest hundred are no exception . Since fifty is halfway through neighboring hundreds , we need to decide to which one we will assign it.

• The standard way is to assign 50 50 50 to the higher hundreds . We call this procedure half-up rounding , and it gives us the following result: 250 → 300 250\rightarrow 300 250 → 300 .
• The half-down rounding is the opposite way to round to the nearest hundred, and it returns the lower hundreds when you deal with fifties.
• You can choose a different behavior for positive and negative hundreds, or even decide to round always in the same direction .

Knowing this, let's perform the rounding in the most common way. Take any number, and consider the last two digits . If that number is lower than 50 50 50 , then reduce the number to the lower hundred; if the number is higher than 50 50 50 , round to the higher hundred. If the number is 50 50 50 , consider the rules above!

How do we calculate the rounding of 980 to the nearest hundred? Consider the two digits to the right: 80 . Are they higher than 50 ? Yup: so to round 980 , we simply write 1000 . Notice that in this case, the digits of the hundred are 0 ! Another example: let's round 40 to the nearest hundred: the answer is 0 since the two rightmost digits are lower than 50 .

And to conclude, why not round 550 to the nearest hundred? What do we do with that fifty? If we chose half-up rounding, the answer is 600 .

There are more ways to round a number than you usually need! Omni covered them all (at least, we think so: leave us a message if you think we can do better) in this useful collection of tools:

• Rounding calculator ;
• Round to the nearest thousand calculator ;
• Round to the nearest thousandth calculator ;
• Round to the nearest ten calculator ;
• Round to the nearest hundredth calculator ;
• Round to the nearest tenth calculator ;
• Round to the nearest integer calculator ;
• Round to the nearest dollar calculator ;
• Round to the nearest cent calculator ; and
• Round to the nearest penny calculator .

How do I round to the nearest hundred?

To calculate the rounding to the nearest hundred, follow these easy steps:

• Take your number and consider the last two digits .
• If the last two digits are lower than 50 , round to the lowest hundred .
• If the last two digits are higher than 50 , round to the higher hundred .
• If you get 50 , you can choose which direction to round. In general, assign the number to the higher hundred .

How do I round 248,682 to the nearest hundred?

To round 248,682 to the nearest hundred:

• Take the two rightmost digits . In this case, 82 .
• Check if they are higher or lower than 50 . In this case, 82>50 .
• Since we are in the upper half of the hundred, round 248,682 to 248,700 , the higher hundred.

How do I round a decimal number to the nearest hundred?

To round a decimal number to the nearest hundred, simply drop the decimal part (don't round it, just ignore it) and follow the normal procedure to round a number to the nearest hundred.

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Rounding Numbers to the Nearest 100 Activities

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Mark the Hundreds to Place the Number Game

Shine bright in the math world by learning how to mark the hundreds to place the number.

Round using the Number Line Game

Unearth the wisdom of mathematics by learning how to round using the number line.

Identify 3-Digit Numbers Using Clues Related to Rounding Worksheet

A worksheet for mastering the identification of 3-digit numbers using rounding clues.

Identify Numbers That Round to the Given Multiple of 100 Worksheet

This worksheet tests your skills in identifying numbers that round to certain multiples of 100.

Round to Nearest 100 Game

Have your own math-themed party by learning how to round to the nearest 100.

Guess the Number to Nearest 100 Game

Learn to solve problems by guessing the number to the nearest 100.

Round Numbers to Nearest 100 and Sort Worksheet

A worksheet focused on rounding numbers to the nearest 100 and sorting them in order.

Rounding 3-Digit Numbers to the Nearest 100 Worksheet

Boost your math skills with this worksheet on rounding 3-digit numbers to the nearest 100!

Previous and Next Hundred on a Number Line Worksheet

Reinforce math concepts by identifying the previous and the next hundred on a number line.

Mark the Previous and Next Hundred on Number Line Worksheet

Reveal the secrets of math wizardry by marking the previous and the next hundred on the number line.

Round to the Nearest Hundred Worksheet

Help your child revise number sense by solving to round off to the nearest hundred.

Round off to the Nearest Hundred Worksheet

Focus on core math skills with this fun worksheet by solving to round off to the nearest hundred.

Numbers That Rounds to 500 When Rounded to Nearest Hundred Worksheet

Identify and highlight all the numbers in the worksheet that round off to 500 when rounded to the nearest hundred.

Numbers That Rounds to 100 When Rounded to Nearest Hundred Worksheet

Identify and highlight numbers that round up or down to 100 in this engaging math worksheet.

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Rounding Worksheets

Rounding worksheets for grades 1-5.

Our rounding worksheets provide practice in rounding numbers to different place values (nearest ten, nearest 100, ...). In later grades the exercises are similar, but with larger numbers.

Choose your grade / topic:

Grade 1: Rounding worksheets

Grade 2: Rounding worksheets

Grade 3: Rounding worksheets  

Grade 4: Rounding worksheets

Grade 5: Rounding worksheets

Topics include:

Grade 1 rounding worksheets

• Rounding numbers to the nearest 10

Grade 2 rounding worksheets

• Rounding numbers to the nearest 10 within 0-100
• Rounding numbers to the nearest 10 within 0-1,000
• Rounding numbers to the nearest 100 within 0-1,000
• Rounding numbers to the nearest 10 or 100 within 0-1,000

Grade 3 rounding worksheets

• Rounding numbers to the nearest 100 within 0-10,000
• Mixed rounding - round to the underlined digit (10's, 100's)
• Mixed rounding - round to the underlined digit (10's, 100's, 1000's)

Grade 4 rounding worksheets

• Rounding numbers to the nearest 1,000 within 0-10,000
• Rounding numbers to the nearest 10,000 within 0-1,000,000
• Mixed rounding - round to the underlined digit
• Estimating and rounding word problems

Grade 5 rounding worksheets

• Rounding numbers to the nearest 10 within 0-10,000
• Rounding numbers to the nearest 100 within 0-1,000,000
• Rounding numbers to the nearest 1,000 within 0-1,000,000
• Mixed rounding - round to the underlined digit (up to nearest million)

Related topics

Place value worksheets

Sample Rounding Worksheet

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Resources tagged with: Rounding

There are 9 NRICH Mathematical resources connected to Rounding , you may find related items under Place value and the number system .

Reasoned Rounding

Four strategy dice games to consolidate pupils' understanding of rounding.

Round the Dice Decimals 1

Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?

Round the Three Dice

What happens when you round these three-digit numbers to the nearest 100?

Round the Two Dice

This activity focuses on rounding to the nearest 10.

Round the Dice Decimals 2

What happens when you round these numbers to the nearest whole number?

Round the Four Dice

This activity involves rounding four-digit numbers to the nearest thousand.

Rough Rectangle

What is the smallest possible area that this rectangle could have?

Archimedes and Numerical Roots

The problem is how did Archimedes calculate the lengths of the sides of the polygons which needed him to be able to calculate square roots?

Route to Root

A sequence of numbers x1, x2, x3, ... starts with x1 = 2, and, if you know any term xn, you can find the next term xn+1 using the formula: xn+1 = (xn + 3/xn)/2 . Calculate the first six terms of this sequence. What do you notice? Calculate a few more terms and find the squares of the terms. Can you prove that the special property you notice about this sequence will apply to all the later terms of the sequence? Write down a formula to give an approximation to the cube root of a number and test it for the cube root of 3 and the cube root of 8. How many terms of the sequence do you have to take before you get the cube root of 8 correct to as many decimal places as your calculator will give? What happens when you try this method for fourth roots or fifth roots etc.?

Everyday Calculation

Free calculators and unit converters for general and everyday use.

Calculators » Math » Rounding Numbers

Math Rounding Calculator

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can perform numeric rounding to 1-decimal place (nearest 10th), 2-decimal places (nearest 100th), 3-decimal places (nearest 1000th), nearest one, nearest 10, nearest 100, nearest 1000, nearest ten thousand, nearest hundred thousand and nearest million of a given number.

To: nearest one nearest 10th nearest 100th nearest 1000th nearest 10 nearest 100 nearest 1000 nearest 10,000 nearest 100,000 nearest million

iOS: Use this calculator offline with our all-in-one calculator app.

Round operation

Click here to see the steps involved in rounding integers or decimal numbers.

To round to a nearest multiple of any other numbers e.g., 5, 15, 25, 50, 500 and so on, use Round up/down calculator.

How to round numbers?

• if the rounding digit is 0, 1, 2, 3, or 4, simply drop all digits to the right of it.
• if the rounding digit is 5, 6, 7, 8, or 9, add one to the rounding digit and drop all digits to the right of it.

Example 1. What is 80.945 rounded to the nearest tenth? Ans. 80.9

Example 2. What is 18.386 rounded to the nearest hundredth? Ans. 18.39

• if the rounding digit is 0, 1, 2, 3, or 4, change all digits to the right of it to zeroes.
• if the rounding digit is 5, 6, 7, 8, or 9, add one to the rounding digit and change all digits to the right of it to zeroes.

Example 3. What is 871 rounded to the nearest ten? Ans. 870

Example 4. What is 121,580 rounded to the nearest thousand? Ans. 122,000

More Math Calculators

• Round up/ down
• Mean, Median, Mode
• Standard deviation

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Math Interventions

Introduction.

• Subitizing Interventions
• Counting Interventions: Whole Numbers Less Than 30
• Counting Interventions: Whole Numbers Greater Than 30 (Place Value)
• Counting Interventions: Fractions
• Counting Interventions: Decimals
• Composing and Decomposing Numbers Interventions
• Rounding Interventions

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• round\:to\:the\:nearest\:integer\:7.602
• round\:to\:the\:nearest\:tenth\:2.38
• 2.263\:rounded\:to\:the\:nearest\:hundredth
• round\:2.5732573\:to\:the\:nearest\:whole\:number

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Rounding reasoning & problem solving

Subject: Mathematics

Age range: 7-11

Resource type: Worksheet/Activity

Last updated

2 October 2016

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lorraivalentina

great activity.

Empty reply does not make any sense for the end user

Great thanks - really good to get my LA Yr5er thinking.

This is really good for your HA and as extension. Just what I needed

haixalo2021991

This is a great problem solving activity on problem solving, thanks

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