Colour By Code Worksheets for Teachers
Bring printable colour by numbers, letters and more foundational concepts into your classroom with fun worksheets created by teachers for teachers.
This collection of Australian curriculum-aligned teaching resources is designed to add an engaging element to your worksheets for maths, science, English and more! Best of all, each printable has been carefully reviewed and selected by an expert on the Teach Starter teaching team, so you know it's ready for your classroom, your lesson plans and your students!
Not familiar with the term colour by code, or just looking for some fresh ideas to use these worksheets in the classroom? Read on for a primer from our teacher team!
What Is a Colour By Code Worksheet?
Haven't heard the term colour by code? That's OK! Maybe you've heard of colour by numbers or colouring by maths? Or maybe you call them mystery picture worksheets?
These fun worksheets allow students to pull out their crayons or coloured pencils to colour a picture based on a predetermined colour key or code, where each colour corresponds to a specific number or symbol. The goal is to match the numbers or symbols on the picture with the corresponding colours to reveal a mystery picture.
Colour by code refers to not just colour by numbers but also colour by parts of speech, synonyms, addition and other educational concepts!

History of Colour by Numbers
Ever wonder how colouring by numbers became so popular?
The exact history of these sheets is hard to track down, but as far back as the early 20th century, people were 'painting by number' as a recreational activity. Then an activity mainly for adults, it involved painting pre-drawn canvases with numbered sections that corresponded to specific paint colours.
In the 1950s, an American artist called Dan Robbins developed a commercial version of the concept called 'Paint by Numbers' that helped the idea go mainstream and give life to what we now call colour by numbers in schools! His kits included pre-printed canvases, numbered paints and brushes, and his idea was soon adapted to make colouring books for kids.
In the versions for kids, numbers or symbols were added to line drawings instead of canvases, and young children could easily colour within the lines using crayons or coloured pencils!
- Plus Plan

Crazy Boxes – 4, 6, 7, 8 Times Tables
A fun multiplication worksheet where students create a colour pattern using 4, 6, 7 and 8 times tables.
- Plus Plan

Crazy Boxes – 6 Times Tables
A fun multiplication worksheet where students create a colour pattern using 6 times tables.
- Plus Plan

Crazy Boxes – 2 Times Tables
A fun multiplication worksheet where students create a colour pattern using 2 times tables.
- Plus Plan

Five Senses Colouring Worksheets
Help your students understand more about their senses with a pack of printable 5 Senses colouring worksheets.
- Plus Plan

Identify and Colour 2D Shapes Worksheet
Use this 2D shapes worksheet to help your students identify 8 of the most common two-dimensional shapes.
- Plus Plan

Subtraction Across Zero - Colour By Number Worksheet
Practise subtraction across zeros with a fun colour-by-number worksheet.
- Plus Plan

Colour By Suffix Worksheet
Reveal the hidden picture and practise using the inflectional endings -s, -es, -ies, and -ves with a colour-by-code worksheet.
- Plus Plan

Parts of Speech Word Search (Nouns, Adjectives and Verbs) – Worksheet
A word search where students find and categorise nouns, adjectives and verbs.
- Plus Plan

Crazy Boxes – 3 Times Tables
A fun multiplication worksheet where students create a colour pattern using 3 times tables.
- Plus Plan

Halloween Shapes - Colour By 2D Shapes Worksheet
Don’t get too spooked while trying to identify 2D shapes with a printable Halloween Shapes Colour by Code worksheet!
- Plus Plan

Firefighter Colour By Number Worksheet - Hundreds Chart
Print the perfect maths activity to accompany your fire safety lessons with a printable firefighter colour-by-number worksheet
- Plus Plan

Decimal Designs – Differentiated Decimal Rounding Worksheet
Guide your students to round decimals to different places and create a beautiful design with this differentiated worksheet.
- Plus Plan

Plant Adaptations - Colour by Number Worksheets
Learn about the adaptations of plants in the rainforest, tundra, and desert with colour-by-number worksheets.
- Plus Plan

Bar Model Subtraction - Maths Colour By Number Worksheet
Bring some spooky maths fun into the classroom with a Halloween colour-by-number worksheet focused on subtraction using a bar model.
- Plus Plan

Colour By 3D Objects - Worksheet
Practise identifying 3D objects and their attributes with a printable code-based colouring task!
- Plus Plan

Real-World 3D Objects - Colouring Worksheet
Explore three-dimensional objects in the real world with this colouring worksheet.
- Free Plan

Grammar Grid Colour by Code - Easter Parts of Speech Worksheet
Follow the colour-coded parts of speech guide to fill in the word grid and reveal a mystery image.
- Plus Plan

Number Recognition Worksheet - Sloth Colour-by-Number
Use the number colour coding on this colouring sheet to create a cute sloth-themed picture.
- Plus Plan

Valentine's Mystery Picture - Multiplication Colour By Number Worksheet
Have fun with your Valentine’s Day Maths with this multiplication mystery picture worksheet.
- Free Plan

2-Digit Addition Colour by Number - Halloween Mystery Picture
Celebrate the coming of Halloween and practise adding 2-digit numbers up to 99 with this set of Halloween mystery picture worksheets.
- Plus Plan

Christmas Colour By Number - Hundreds Chart Mystery Pictures Activity
Print the perfect maths activity for Christmas: a set of 12 Christmas-inspired mystery hundreds charts.
- Plus Plan

Multiplication Mystery Picture (Pencil)
Use the colour-coded multiplication guide to complete the grid and reveal a mystery picture.
- Plus Plan

100 Chart Mystery Picture Puzzle
Practise identifying numbers within 100 with this set of 44 number cards and hundreds board.
- Plus Plan

Crazy Boxes – 8 Times Tables
A fun multiplication worksheet where students create a colour pattern using 8 times tables.
- Plus Plan

Crazy Boxes – 5 Times Tables
A fun multiplication worksheet where students create a colour pattern using 5 times tables.
- Plus Plan

Crazy Boxes – 10 Times Tables
A fun multiplication worksheet where students create a colour pattern using 10 times tables.
- Plus Plan

Hundreds Board Mystery Picture Division Task Cards
A set of 32 activity task cards that require students to complete division problems and colour in a hundreds chart to reveal a mystery picture.
- Plus Plan

Comparing Decimals – Colour by Number Worksheet
Compare decimals and create a beautiful stained-glass picture with this colour-by-number worksheet.
- Plus Plan

Halloween Colour by Number - Double Digit Multiplication Worksheets
Practise multiplying by double digits with a pair of engaging Halloween colour-by-number worksheets.
- Plus Plan

Homophone Mandala Flower Worksheets
Have your students create a colourful mandala flower while simultaneously demonstrating their understanding of common homophones.
- Plus Plan

Rounding Decimals – Differentiated Colour by Code Worksheet
Guide your students to round decimals to the nearest tenth and hundredth with this differentiated colour-by-code worksheet.
- Plus Plan

Prefixes and Suffixes - Colour By Code Worksheets
Practise identifying words with affixes with a fun colour-by-code worksheet.