Rounding Decimals Teaching Resources
Are you teaching rounding decimals this school year? Explore printable worksheets, games and hands-on activities to teach students how to round decimals to the nearest tenth and how to round a variety of decimal places!
Aligned with the Common Core Math and TEKS curriculums, each teacher resource in this collection has been created by a teacher on our teacher team. Best of all? Each resource has undergone a careful review by a math teacher on our team to ensure it's ready for your decimal lesson plans and your students.
Explore differentiated and editable versions of some of our most popular resources.
Are you new to teaching students how to round decimals? Take a look at this primer from our teacher team!
Teaching How to Round Decimals
Rounding decimals makes numbers easier to work with and understand, and learning how to round decimals is an important part of math education in upper elementary or middle school. In particular, teaching this skill will set your students up for working with measurements and financial calculations.
But how do you teach it?
Teach the Rounding Rules
Rounding a number to the nearest whole, tenth or hundredth can be done following a series of different rounding rules.
1. Rounding to the Nearest Tenth
When we're rounding decimals to one decimal place, we're also rounding to the nearest tenth. It's done according to the following rule:
- 5 or more, round up; 4 or less, round down
This rule tells us that if the digit to the right of the tenths place (the digit in the hundredths place) is 5 or higher, we should round up. If it's 4 or less, we round down.
For example, let's take the number 2.17 and round to one decimal place.
Because the number 7 is higher than 5, this would be rounded to 2.2.
2. Rounding to 2 Decimal Places
Also known as rounding to the nearest hundredth, rounding to 2 decimal places requires us to use the same "5 or More, Round Up; 4 or Less, Round Down" rule.
The only difference? This time, students will look to the digit to the right of the hundredths place — the number in the thousandths place — to determine if they should round up or down.
For example, if the number is 3.456, to round to the nearest hundredth, the student would round up to 3.46.
3. Rounding Decimals to the Nearest Whole Number
If your students have a number in decimal form and the goal is to produce a whole number, they can also use the "5 or More, Round Up; 4 or Less, Round Down" rule.
This time, the digit that they are evaluating is the digit in the tenths place! If it is 5 or higher, the whole number should be rounded up. If it's 4 or less, the whole number should be rounded down.
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Plan a Halloween Party – Estimation Project
Plan your own Halloween party and practice estimating sums, differences and products of whole numbers and decimals with an engaging math project!
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Rounding Decimals – Worksheet for 5th Grade
Practice rounding decimals to the nearest tenths and hundredths place with this worksheet.
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Halloween Rounding Decimals Worksheets- Halloween Riddles
Have fun rounding decimals to the tenths and hundredths place with our riddle-based Halloween worksheets!
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Estimating Decimal Sums and Differences Interactive Activity
Take your students on a safari adventure while practicing how to estimate decimal sums and differences with this interactive activity.
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Halloween Interactive Assessment- Round to Three Decimal Places
Scare up some new assessment data when your student's round decimals to the nearest tenth, hundredth, and thousandth with a Halloween-themed rounding decimals quiz.
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Decimal Designs – Differentiated Decimal Rounding Worksheet for 5th Grade
Guide your students to round decimals to different places and create a beautiful design with this differentiated worksheet for 5th grade.
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Roll and Round Dice Game
Help your student refine their rounding skills with this set of 7 printable math games.
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Rounding Decimals Number Search Worksheets for 5th Grade
Encourage your 5th-grade students to practice rounding decimals to the nearest whole number, tenth and hundredth with this set of number search worksheets.
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Reel It in Rounding With Decimals – Interactive Task Cards for 5th Grade
Guide your 5th-grade students to tackle questions where they must round decimals to the nearest whole number, tenth and hundredth with this set of 24 interactive task cards.
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Rounding Numbers With Decimals – Teaching Slides and Worksheet for 5th Grade
Teach your students how to round to the nearest whole number, tenth and hundredth with this set of teaching slides and accompanying worksheet.
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Estimating Decimal Sums and Differences Task Cards
Challenge your students to use rounding and benchmark values to estimate sums and differences of decimals with this set of 24 task cards.
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Top Secret Scavenger Hunt – Estimating Decimal Sums and Differences
Join the decimal scavenger hunt adventure! Download our printable scavenger hunt and guide your students to sharpen their estimation skills by using decimal benchmark values when finding sums and differences.
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Race Car Rounding With Decimals Interactive Activity for 5th Grade
Rev up your math engines and take the rounding decimals race! Download this interactive Google Slides activity and challenge your students to become a decimal rounding champion!
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Decimal Exit Tickets for 5th Grade (Place Value, Rounding, Ordering and Computation)
Assess student understanding of 5th grade decimal standards with this set of 21 exit tickets.
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Estimation With Decimal Multiplication Matching Game
Guide your students to estimate products with decimals by using this 36-card matching game.
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Estimating Products With Decimals – Task Cards for 5th Grade
Challenge your students to estimate before multiplying decimals with this set of 24 task cards.
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Rounding Decimals on a Number Line – 5th Grade Math Worksheets
Teach your 5th-grade students how to determine missing numbers on a number line and use it to round decimals to the nearest whole number, tenth and hundredth.
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Estimating Sums and Differences With Decimals Worksheet for 5th Grade
Teach your students how to estimate decimal sums and differences with this 5th-grade math worksheet.
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Rounding Decimals Worksheet Set for 5th Grade
Guide your students to round numbers to the nearest whole, tenth, hundredth and thousandth with this worksheet set designed for 5th-grade students.
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Rounding Decimals – Differentiated 5th Grade Color by Code Worksheet
Guide your 5th-grade students to round decimals to the nearest tenth and hundredth with this differentiated color-by-code worksheet.
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Estimating Quotients Sorting Activity for 5th Grade
Guide your students to use rounding and compatible numbers when estimating quotients with this 24-card sorting activity.
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It's a Match! – Rounding With Decimals Puzzle
Practice rounding decimals up to the thousandths place with 34 puzzle pair matching pieces.
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Rounding Decimals Board Game
Practice rounding decimals to the nearest tenth and hundredth with this printable math game.
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Rounding Decimals Bingo
Review how to round decimals to the nearest whole, tenth, and hundredth with a whole-class bingo game.
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Rounding Decimals - I Have, Who Has? Game
Review how to round decimals with an exciting I Have, Who Has? game.
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Rounding Decimals – Bump! Games
Review how to round decimals with this set of printable math games.
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Rounding Decimals – Task Cards
Round decimals to the nearest hundredth with this set of 24 task cards.
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Rounding Decimals With Visual Models – Task Cards
Use these task cards to round decimals to the nearest tenth or hundredth and match each value with a corresponding decimal model.
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Rounding Decimals – Mystery Picture Worksheet
Round decimals to the nearest whole, tenth, hundredth, and thousandth while revealing a mystery image with this color-by-number worksheet.
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Rockin' Rounding – Google Slides Interactive Activity
Round numbers to different place values with a Google Interactive activity designed for fourth and fifth-grade students.
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Rounding Numbers – Math Mazes
Round numbers to various places while finding your way through this set of 5 math mazes.
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5th Grade Place Value Assessment
Assess student understanding of place value, rounding, and comparing decimals with this math assessment.