# Decimals Teaching Resources

Browse decimal worksheets, math center activities, engaging games and more fun ways to bring this concept to life in your elementary classroom.

This teaching resource collection was created by the teachers on the Teach Starter team and includes activities to help students learn to convert fractions into decimals and vice versa, as well as printables that will help them learn how to read and write decimals using place value and the decimal point, how to round decimals and more!

Build students' understanding of using decimals in money and measurement with curriculum-aligned teaching resources so you can meet Common Core and state standards.

New to this concept in the math classroom, or just looking for some fresh ideas for teaching about decimals? Explore a primer from the teachers on the Teach Starter team!

## What Are Decimals? A Kid-Friendly Definition

Explaining decimals to your class? Here's a kid-friendly definition that will help!

A decimal is a special way to write parts of a whole number. Decimals are a lot like fractions, but instead of using numbers like 1/2 or 1/4, we use a dot called a decimal point to separate the whole number part from the part that is less than one.

The number before the decimal tells you how many wholes you have, and the digits after the decimal point tell you how many groups of one-tenth, one-hundredth or one-thousandth you have.

One of the most common places students will encounter decimals in real life is when using money — the dollar is a whole number, while cents are a part of the whole and are typically represented beyond a decimal point.

## How Do You Turn a Decimal Into a Fraction and Vice Versa?

Turning decimals into fractions and doing the reverse are both important skills for students to develop. Here are simple processes for doing just that!

### How to Turn a Decimal Into a Fraction

- Write down the digits in the decimal over its place value.
- For example, if you have the decimal 0.75 (seventy-five hundredths), you would write it as 75/100.

- Simplify the fraction by finding the greatest common factor (GCF) of the numerator and denominator and dividing both by it.
- In the example above, the GCF of 75 and 100 is 25, so dividing both by 25 gives you the simplified fraction 3/4. This means 0.75 as a fraction is 3/4.

### How to Turn a Fraction Into a Decimal

To turn a fraction into a decimal, your students will need to divide the numerator (top number) by the denominator (bottom number).

- Divide the numerator by the denominator.
- If the numerator does not divide evenly by the denominator, add zeroes to the dividend to continue the division to as many decimal places as needed or desired. Don't forget to add a decimal point after the digit found in the denominator!
- Round the decimal to the desired number of decimal places, if necessary.

## How Do You Round Decimals?

Another skill students need to learn is the process of rounding decimals to the nearest whole number or to a specific decimal place. This will allow them to simplify numbers, making them easier to work with! This comes in handy when doing things such as rounding to the nearest dollar amount when working with money.

Rounding can also be used to get a general sense of a number without worrying about the exact value, which can be helpful in certain situations, such as estimating a budget or measurement.

To round a decimal to the nearest whole number, you need to look at the digit to the right of the decimal point.

- If that digit is 5 or greater, you round up to the next whole number.
- If that digit is 4 or less, you round down to the current whole number.

For example, let's say you want to round the decimal 3.7 to the nearest whole number. The digit to the right of the decimal point is 7, which is 5 or greater, so you round up to 4.

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### Multiplying Decimals – Word Problem Task Cards

Solve a variety of word problems by multiplying decimals with this set of 24 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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### Decimal Operations Worksheet

Get students applying the four operations to decimal numbers with this set of two math worksheets.

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### Decimal War Card Game

Get your students comparing decimals with this fun card game for two players.

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### Describe That Decimal Worksheet

Explore the place value of decimals with this versatile one-page printable worksheet.

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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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### Estimating Decimal Sums and Differences – Worksheet

Refine rounding skills with an estimating decimal sums and differences worksheet.

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### Place Value Chart with Decimals

Display this place value anchor chart in your classroom to remind your students of place value from millions to millionths.

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### Comparing and Ordering Decimals Worksheet

Get students comparing and ordering decimals to the thousandths place with this printable worksheet.

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### Multiplying with Decimals Bingo Game

Get your students multiplying decimals by whole numbers with this engaging Bingo game.

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### Tenths and Hundredths as Decimals Worksheet Pack

Get your students representing tenths and hundredths as decimals using concrete models, visual models and money with this set of 4th grade math worksheets.

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### Decimal Place Value Game – Find A Decimal Who...

Explore decimal place value with your students using an interactive whole-class game.

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### Fraction Representations Posters - Whole, Halves, Thirds, Fourths, and Fifths

A set of posters showing the different representations of benchmark fractions.

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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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### Fractions and Decimals Worksheets

A set of 16 fraction and decimal worksheets.

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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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### 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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### Fraction, Percentage, and Decimal Word Wall Vocabulary

Print a set of fraction, percentage, and decimal vocabulary for use on a math word wall.

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### Decimal War Board Game

Compare decimals by means of numerals, words and Base 10 block representations with this printable board game.

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### Patterns in Place Value Teaching Slides

Strengthen student understanding of decimal place value and the relationship between place value positions with this instructional slide deck.

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### Expanded Notation Puzzles - Decimals

Practice expanded notation using decimals and whole numbers with this set of 28 puzzle pieces.

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### Naming Decimals Worksheet

Get students applying decimal place value skills to represent numbers to the thousandths place in standard, word and expanded form.

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### Math Mazes (Equivalent Fractions, Decimals, and Percentages)

Determine equivalent fractions, decimals, and percentages with this puzzling math maze.

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### Operations with Decimals Teaching Slides

Teach your students how to add, subtract, multiply and divide using decimal numbers with this comprehensive teaching presentation perfect for upper elementary math lessons.

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### Fractions and Decimals Assessment

Assess students' knowledge of various decimals and percentages concepts with this four-page worksheet.

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### Representing Decimals with Visual Models Task Cards

Explore visual representations of decimals with your students using this set of 24 task cards perfect for math centers.

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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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### 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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### 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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### Comparing Decimals – Bump Game

Compare decimals through the thousandths place with a comparing decimals game designed for 5th-grade students.

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### Comparing and Ordering Decimals – Kaboom Game

Practice comparing and ordering decimals to the thousandths place with an exciting game of Kaboom!

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### Lost in Decimal Woods - Decimal Number Line Interactive

Recognize and analyze decimals on a number line with an exciting self-checking interactive game.