# Decimal Operations Teaching Resources

Teach decimal operations this school year with worksheets, activities and more — all created by teachers to help your students understand how to add, multiply, subtract and divide decimals!

Aligned with the Australian maths curriculum and created just for Aussie teachers, this collection of printable and digital teacher resources has everything you need for your lesson plans — we've even got differentiation covered!

Are you new to teaching decimal operations? Looking for a quick refresher? Read on for a primer from our teacher team on how to handle all four operations!

## How Do You Add Decimals?

Let's start with one of the simplest operations when it comes to decimals: adding.

- Line up the decimal points of the numbers to be added.
- Add the numbers as if they were whole numbers.
- Place the decimal point in the sum directly below the decimal point in the original numbers.

## How Do You Subtract Decimals?

Subtracting decimals is pretty similar to adding, although the operation is different. Here's how it works:

- Line up the decimal points of the numbers to be subtracted.
- Subtract the numbers as if they were whole numbers.
- Place the decimal point in the difference directly below the decimal point in the original numbers.

## How Do You Divide Decimals?

Whether you're trying to find the average of a set of numbers that include decimals or determining the unit price of an item on the shelves at the chemist, being able to divide decimals has plenty of real-world applications for students.

The basic process of dividing decimals follows the same basic principles as dividing whole numbers, with one additional step — you need to adjust the decimal point in the divisor (the number you are dividing by) and the dividend (the number you are dividing) so that the divisor becomes a whole number.

Here's how to do it:

- If the decimal point is missing from one or both numbers, add it to the end of the number(s) so that they are both decimals.
- For example, if you are dividing 72 by 0.6, add a decimal point to 72 to make it 72.0.

- Move the decimal point in the divisor to the right until it becomes a whole number. At the same time, move the decimal point in the dividend the same number of places to the right. Keep track of how many places you moved the decimal point.
- Divide the adjusted dividend by the adjusted divisor (now a whole number), just like you would with whole numbers.
- Move the decimal point in the quotient (the answer to the division problem) back to the left the same number of places you moved the decimal point in step 2.

## How Do You Multiply Decimals?

Multiplying decimals can help your students calculate the total cost of items at the store, determine the amount of a discount or tax and a whole lot more. The process to do it is simple, once they get it down!

- Ignore the decimal points and multiply the numbers as if they were whole numbers.
- Count the total number of decimal places in the numbers being multiplied.
- Starting from the right of the product, count that many places and insert a decimal point.

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### Year 6 Fractions, Decimals and Percentages Worksheets

Use these fractions, decimals and percentages worksheets in your Year 6 classroom for independent practice or as an assessment activity.

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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 primary maths lessons.

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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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### Multiplying with Decimals – Differentiated Worksheets

Strengthen computation skills with this set of decimal multiplication worksheets.

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### Decimals on Number Lines – Codebreaker Worksheets

Crack the number line code with worksheets practising identification, addition, and subtraction of decimal numbers.

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### Decimal Operations Worksheet

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

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### Adding and Subtracting Decimals Word Problems Worksheet

Practise solving word problems by adding and subtracting decimals to the thousandths place with this worksheet.

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### Adding and Subtracting Decimals – Word Problem Task Cards

Have students solve decimal word problems with this set of 16 task cards, perfect for math centers.

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### Adding and Subtracting Decimals Year 6 Worksheet

Practise adding and subtracting decimals to the hundredths place with this worksheet.

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### Multiplying Decimals Maths Mazes

Complete decimal multiplication problems while finding your way through this set of three math mazes.

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### Dividing Decimals Maths Mazes

Review how to divide a decimal by a decimal and a whole number with this set of maths mazes.

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### Decimal Exit Tickets (Place Value, Rounding, Ordering and Computation)

Assess student understanding of decimal place value, rounding, ordering and computation with this set of 21 exit tickets.

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### Dividing with Decimals – Word Problem Task Cards

Sharpen decimal division skills while solving a variety of word problems with this set of 24 task cards.

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### Dividing Decimals Bingo

Master the ability to divide with decimals by playing a whole-class bingo game.

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### Dividing Decimals by Whole Numbers Worksheet Pack

Download these dividing decimals by whole numbers worksheets to provide your students with practice using visual models and the standard algorithm.

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### Multiplying Decimals by Decimals Worksheet Pack

Download these multiplying decimals by decimals worksheets to provide your students with practice using visual models, area models and the standard algorithm.

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### Dividing with Decimals – Differentiated Worksheets

Download this set of differentiated dividing decimals worksheet to help your students practice this key maths skill.

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### Adding and Subtracting Decimals – Differentiated Mystery Image Worksheets

Have students practise adding and subtracting decimals with this mystery image worksheet.

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### Multiplying Decimals – Riddle Worksheets

Get students solving decimal multiplication problems with this set of 3 differentiated riddle worksheets.

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### Multiplying Decimals Bingo

Solve for products of decimals to the hundredths place with a whole-class bingo game.

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### Dividing Decimals Task Cards

Sharpen decimal division skills with this set of 24 task cards.

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### Dividing Decimals by Whole Numbers Teaching Slides

Teach your students how to divide decimals by whole numbers using visual models and the standard algorithm using this step-by-step teaching presentation.

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### Decimal Operations Maths Mats

Get students reviewing decimal operations with these engaging, puzzle-based math mats.

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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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### Number Talks – Decimal Operations Task Cards

Explore decimal operations with your students using this set of 26 number talk task cards.

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### Dividing Decimals Match-Up Activity

Divide decimals and find the correct quotient with this match-up activity.

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### Multiplying Decimals Task Cards

Get your students multiplying decimals by decimals and whole numbers with this set of 24 task cards perfects for maths rotations.

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### Adding and Subtracting Decimals Dominoes for Year 6

Use this year 6 maths game of dominoes to strengthen computation skills by adding and subtracting decimals through the thousandths place.

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### Adding and Subtracting Decimals Worksheet

Add and subtract decimals with a number line 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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### Multiplying Decimals by Decimals Teaching Slides

Teach your students how to multiply decimals by decimals using three different strategies using this step-by-step teaching presentation for Year 7 students.

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### Multiplying Decimals Match-Up Activity

Get students multiplying decimals with this engaging card game, perfect for maths groups.