
Year 3 Maths Activities and Resources: A Complete Guide for 7-8 Year Olds
Year 3 maths activities and resources help children aged 7 to 8 build important skills in number sense, multiplication, fractions and problem solving. Hands-on practice and engaging materials make a real difference.
Finding the right mix of worksheets, games and teaching tools can totally change how your child understands core maths concepts. Place value and the times tables they need for Year 4 and beyond start to click.
Whether you’re a teacher planning lessons or a parent supporting learning at home, quality resources can make maths feel less like a chore and more like an adventure.

Michelle Connolly, founder of LearningMole and a former primary teacher with over 15 years in the classroom, says, “Year 3 is a pivotal time when children transition from concrete counting to more abstract mathematical thinking, so activities that blend visual models with real-world problems help bridge that gap.” LearningMole is a UK educational platform packed with curriculum-aligned video resources and teaching materials designed for this age group, giving you access to tools that match what children learn in school.
You’ll find everything from printable worksheets covering addition and subtraction to interactive games that reinforce times tables. The right resources help children master the Year 3 curriculum.
You’ll see how different activities target fluency, reasoning and problem solving. These activities help children develop confidence in every area of maths.
Key Takeaways
- Year 3 maths activities should cover place value, the four operations, fractions and measurement to match National Curriculum expectations.
- Mixing worksheets, games and visual models helps children develop both fluency and a deeper understanding of mathematical concepts.
- Quality resources aligned with UK curriculum standards save planning time and ensure children practise skills they actually need.
Understanding the Year 3 Maths Curriculum
Year 3 feels like a big step as children move from KS1 to KS2. They build on basic number skills and start working with numbers up to 1,000.
They also meet formal written methods and new ideas like fractions and perimeter.
Key Aims and Focus Areas
The year 3 maths curriculum activities focus on building fluency with whole numbers and the four operations. Your child will spend a lot of time on addition, subtraction, multiplication and division.
Number facts and place value become even more important as children start to work with bigger numbers.
Core mathematical areas include:
- Number and place value: Working with numbers up to 1,000
- Calculations: Formal written methods for addition and subtraction
- Multiplication and division: Learning the 3, 4, and 8 times tables
- Fractions: Understanding unit and non-unit fractions
- Measurement: Introducing perimeter, mass, capacity, and length
- Geometry: Properties of 2D and 3D shapes
- Statistics: Reading and interpreting simple charts and graphs
Children spend a lot of time on times tables this year. They consolidate the 2, 5, and 10 times tables from Year 2 and start learning new facts.
National Curriculum Alignment
The White Rose Maths Year 3 scheme follows the national curriculum and about 70% of UK schools use it. This mastery approach splits learning into autumn, spring and summer terms with clear topic blocks.
Autumn term covers place value, addition and subtraction, and multiplication and division part A. Spring term moves on to multiplication and division part B, length and perimeter, fractions part A, and mass and capacity. Summer term finishes fractions part B and then covers money, time, shape, and statistics.
This approach makes sure children revisit key concepts across the year. Multiplication and division are split across two terms so children can understand them more deeply before tackling harder calculations.
Progression from KS1 to KS2
As children move from KS1 to KS2, they shift from numbers up to 100 to working with numbers up to 1,000. That’s quite a leap in mathematical thinking.
Place value gets trickier as hundreds are added alongside tens and ones.
Year 3 introduces formal written methods for the first time. Children learn column addition and subtraction, building on the mental strategies they used in KS1.
Multiplication moves beyond repeated addition to include arrays and the first steps of grid method calculations.
Fractions become more involved too. Year 2 covered basic fractions like halves and quarters. Now, Year 3 children work with equivalent fractions and start adding and subtracting fractions with the same denominator.
Essential Year 3 Maths Skills

Children aged 7 to 8 work with numbers up to 1,000. They master their times tables up to 12 and develop reliable methods for adding and subtracting two and three-digit numbers.
Number and Place Value Foundations
Your child needs to understand that each digit in a number has a different value based on its position. In Year 3, children use hundreds, tens and ones to build numbers up to 1,000.
They compare and order three-digit numbers using the greater than and less than symbols. Children practise identifying 10 or 100 more or less than any given number.
Place value forms the foundation for all other maths work at this stage.
Children also count in multiples of 4, 8, 50 and 100 from zero. They read and write numbers to 1,000 in both digits and words.
Understanding the value of each digit helps them tackle harder calculations later in the year.
Fluency in Addition and Subtraction
Year 3 pupils add and subtract numbers with up to three digits using formal written methods. The column method becomes essential for calculations they can’t solve mentally.
Your child will practise mental strategies for simpler sums, like adding or subtracting 1, 10 or 100. Estimating answers before calculating helps them check if their results make sense.
Teachers often notice that regular practice with number bonds to 20 speeds up mental arithmetic.
Children solve word problems using these operations, including questions about money and giving change. They learn to spot when addition or subtraction is needed in real-life situations.
Quick recall of number facts up to 20 supports all this work.
Multiplication and Division Readiness
Children memorise the 3, 4 and 8 times tables and build on the 2, 5 and 10 tables from Year 2. Your child should recall these multiplication facts quickly and know the related division facts too.
They write multiplication and division statements using the × ÷ and = symbols. Two-digit numbers multiplied by one-digit numbers become manageable through both mental and written methods.
LearningMole offers free video tutorials that break down times tables into memorable chunks for children who need extra support.
Children solve multiplication and division problems, including missing number questions. They start to see that multiplication and division are inverse operations.
This understanding helps them check their answers and builds confidence with essential skills needed for Year 4.
Types of Year 3 Maths Activities

Year 3 children learn best through a mix of practical tasks, problem-solving challenges and group activities. These different activities help children grasp concepts like fractions, multiplication and measurement in ways that suit their learning style.
Hands-On and Practical Tasks
Physical activities help Year 3 children understand abstract maths concepts by letting them touch, move and manipulate objects. Fun maths games like ‘Food Fractions’ let children cut up real food items to explore halves, quarters and thirds in a way that makes sense to them.
Measuring activities work especially well for practical learners. Children can measure the perimeter of playground equipment, classroom furniture or outdoor spaces using metre sticks and measuring tapes.
Measuring ingredients precisely gives children real-world practice with grams, millilitres and fractions while baking or cooking.
Shape hunts encourage children to identify 2D and 3D shapes in their environment. You can send children around the school or home to find rectangles, triangles, cylinders and cubes.
They can record their findings with drawings or photographs.
Times table card flip games use physical cards that children turn over to match questions with answers. This builds muscle memory and number recall at the same time.
Word and Reasoning Problems
Word problems help Year 3 children apply their calculation skills to real-life situations. These problems ask children to read carefully, pick out the important information and choose the right operation.
Start with simple one-step problems. Later, try two-step challenges.
A typical Year 3 problem might read: ‘Sarah has 24 stickers and gives 8 to her friend. How many does she have left?’ Children need to spot this as a subtraction problem and explain their thinking.
Reasoning activities ask children to prove whether statements are true or false. For example: ‘All numbers ending in 5 are odd. Is this always, sometimes or never true?’ Children test examples and explain their conclusions using mathematical language.
Key reasoning skills for Year 3:
- Explaining methods and choices
- Spotting patterns in numbers
- Testing mathematical statements
- Comparing different solutions
Group Games and Collaborative Work
Collaborative activities help children communicate and reinforce mathematical concepts. Year 3 maths activities that involve teamwork encourage children to learn from each other and develop problem-solving strategies together.
Maths bingo works well in whole classes or small groups. You call out questions like ‘7 × 3’ and children cover the answer on their boards.
The first to complete a line wins. This builds fluency in the four operations through a bit of friendly competition.
Number line races get teams working together to solve calculations and move along a large floor number line. Each correct answer moves the team forward and encourages accuracy and speed.
Maths charades asks children to act out mathematical vocabulary, operations or shapes while their team guesses. This reinforces terminology in a memorable way.
You can adapt the difficulty by including concepts like ‘parallel lines’, ‘denominator’ or ‘right angle’ depending on what you’ve been teaching.
Year 3 Maths Resources for Classrooms and Home
Teachers and parents can choose from a wide range of materials to support Year 3 maths learning. Options include traditional worksheets and modern digital platforms.
The right mix of printable activities, interactive tools and structured home packs helps children aged 7-8 build confidence with number, place value, fractions and geometry.
Printable and Downloadable Worksheets
Year 3 maths worksheets give you ready-made practice for key topics in the KS2 curriculum. You’ll find worksheets on multiplication tables, addition and subtraction using three-digit numbers, fractions, measurement and shape.
Many resources line up with National Curriculum objectives, which saves you a bit of planning time. Look for worksheets with visual aids and diagrams, as they help children get to grips with concepts like equivalent fractions or working out perimeters.
Curriculum-aligned worksheets often have answer sheets, so they’re handy for both classwork and homework. You can download and print what you need, adapting the difficulty to suit different children.
Some worksheets mix several skills in a single activity, letting children spot links between topics like shape and measurement. This makes things a bit more interesting and less repetitive.
Digital and Interactive Tools
Online platforms bring a different kind of engagement compared to paper worksheets. Interactive activities let children practise times tables through games, quizzes, or quick-fire challenges.
Digital tools give instant feedback, so kids can spot mistakes and try again straight away. Many platforms include virtual manipulatives for fractions, place value, and geometry.
Children can drag counters, split shapes, or build number lines right on the screen. These tools turn abstract ideas into something they can see and move around.
You’ll also find video lessons that break down tricky topics like column addition or reading scales. LearningMole offers educational resources with curriculum-based videos that explain Year 3 maths in manageable steps.
Screen-based activities fit nicely alongside hands-on materials and written work. Mixing things up usually keeps children more interested.
Recommended Home Learning Packs
Structured packs can help parents support maths learning at home, even if they’re not teachers themselves. These packs usually have weekly activities, clear instructions, and all the worksheets or materials needed.
Look for packs that follow school term dates and match what children are learning in class. Good packs offer a mix of activities to keep things fresh—maybe a board game for number bonds, a measuring task using things around the house, and some worksheets for written practice.
Many packs suggest how long each activity should take, which is useful. Some resources come with parent guidance notes that explain the methods taught in schools.
This helps you avoid accidentally teaching a different strategy that might confuse your child. Choose packs that focus on one or two topics at a time, rather than trying to cover everything at once.
Mastery Approaches in Year 3 Maths

Maths mastery in Year 3 builds a foundation where children develop a deep understanding instead of rushing ahead. Teachers use structured frameworks and specific teaching principles to help seven and eight-year-olds gain lasting maths skills.
Maths Mastery Principles
Maths mastery means children really learn concepts before moving on to new topics. Learning doesn’t happen all at once—pupils need time to grasp maths that’s right for their year group.
Your Year 3 class moves through topics together, so everyone gets a chance to understand ideas properly. Teachers break concepts into small steps, using different activities to make connections between areas of maths.
Resources for maths mastery in Year 3 usually offer several activities for each objective. Children start with concrete materials like place value counters and number lines, then move to pictures and finally to abstract calculations.
This approach puts the focus on problem solving and reasoning. Pupils explain their thinking, spot patterns, and apply what they know to new situations, not just repeat the same exercise over and over.
The White Rose Maths Framework
White Rose Maths gives you a structured scheme, breaking the Year 3 curriculum into manageable blocks. Teaching resources aligned with White Rose Maths cover number and place value, addition and subtraction, multiplication and division, fractions, measurement, and geometry.
Each small step brings fluency practice, reasoning challenges, and problem-solving tasks. The framework keeps a consistent structure across year groups, so progression feels clear for both you and your pupils.
Year 3 White Rose materials include worksheets, activity cards, PowerPoints and games. These resources encourage mastery through varied practice.
You can pick out differentiated resources to support children working at different depths within the same concept.
Fostering Number and Place Value Understanding
Year 3 pupils work with numbers up to 1,000. They need strong foundations in counting patterns and understanding where digits go.
These skills support addition, subtraction, and multiplication throughout the curriculum.
Counting and Number Patterns
Children in Year 3 count in multiples of 4, 8, 50, and 100 as part of the National Curriculum. You can use number lines on classroom walls to help pupils see these sequences.
Skip counting works well during morning routines or when moving between activities. Try giving pupils a starting number like 236 and ask them to count forwards or backwards in tens or hundreds.
This builds confidence with three-digit numbers and strengthens place value concepts. Interactive counting games let children spot patterns and predict what comes next.
Activities aligned to the curriculum encourage hands-on counting practice. You might use hundred squares where children colour in multiples to spot visual patterns.
This makes abstract concepts feel more concrete and less intimidating.
Place Value Activities
Understanding that digits stand for hundreds, tens, and ones is key to number and place value in Year 3. Children need to see that the 3 in 347 means 300, not just 3.
Place value cards work well for splitting numbers into their parts. Year 3 place value resources offer worksheets and visual displays for different ability levels.
You can create sorting activities where pupils arrange digit cards to make the largest or smallest numbers possible. This builds understanding and problem-solving skills.
LearningMole gives you free video resources that show place value concepts visually. Using Base 10 blocks or counters, children can build numbers and see how swapping ten ones for one ten keeps the value the same.
Supporting Addition, Subtraction, Multiplication, and Division
Year 3 pupils need strong mental strategies for adding and subtracting. They also need to become confident with times tables and understand how division links to multiplication.
Addition and Subtraction Strategies
You can help Year 3 children master formal written methods using columnar addition and subtraction practice. These methods build on what they learnt about partitioning in Year 2.
Mental strategies come first before moving to written methods. Children should practise number facts and use them for related calculations.
For example, knowing 7 + 8 = 15 helps with 70 + 80 = 150. Addition and subtraction worksheets for Key Stage 2 include activities like using inverse operations to check answers, partitioning numbers, and finding efficient mental strategies for quick calculations.
Applying column methods for larger numbers is also key. Year 3 pupils should tackle word problems that make them choose the right operation.
This grows their reasoning skills and helps them practise calculations in real situations.
Multiplication Facts Practice
Year 3 children learn the 3, 4, and 8 times tables, while revising their 2, 5, and 10 times tables from Year 2. Regular, short practice makes these facts stick.
Short daily sessions work better than the odd long one. Use quick-fire questions, multiplication worksheets, or games to keep things lively.
Times table relationships help children learn faster. The 4 times table is double the 2 times table, and the 8 times table is double the 4 times table.
These links mean children have less to memorise. LearningMole has free videos that show multiplication concepts with visuals and real-life examples.
Division Methods
Division in Year 3 builds directly on multiplication facts. Children learn that division is the opposite of multiplication, so 3 × 4 = 12 means 12 ÷ 4 = 3.
Introduce division as both grouping and sharing. Grouping asks “how many groups of 4 are in 12?” Sharing asks “if we share 12 between 4 people, how many does each get?”
Both questions give the same answer but represent different situations. Children can use counters or cubes to model division problems.
This hands-on approach helps them understand division before moving on to written calculations. Mental division strategies include using known multiplication facts and working backwards.
If a child knows 5 × 8 = 40, they can quickly work out 40 ÷ 8 = 5.
Exploring Fractions and Ratio in Year 3
Year 3 students build their maths skills through hands-on fraction work and early ratio ideas. These topics introduce children to parts of a whole and comparing quantities in practical ways.
Interactive Fraction Activities
Year 3 fractions learning focuses on unit fractions, non-unit fractions, and tenths. Children learn to recognise fractions with the same denominator and start to understand equivalent fractions.
Paper folding activities help children see fractions physically. Fold paper into halves, quarters, and eighths to show how fractions link together.
Colouring worksheets let children shade parts of shapes to represent different fractions. Fractions and sharing equally become clearer when you use real-life examples.
Dividing pizzas, chocolate bars, or fruit among friends shows how fractions work day-to-day. Number lines marked with fractions help children see where these values fit between whole numbers.
Finding and recognising tenths involves counting in tenths and writing fractions both as numbers and visually. Children compare fractions like 1/4 and 3/4 or 2/10 and 5/10 to see which is bigger.
Introduction to Ratios
Basic ratio ideas pop up in Year 3 through simple comparison activities. Students might compare two red blocks to three blue blocks, writing it as 2:3.
Pattern recognition helps build ratio understanding naturally. When children make repeating patterns with two colours or shapes, they’re working with ratios without even thinking about it.
A pattern of two circles followed by one square repeats in a 2:1 ratio. Practical activities work best for introducing ratios.
Mixing paint colours in certain amounts or following simple recipes shows how ratios affect outcomes. You can ask children to keep the same ratio when scaling patterns up or down.
Simple word problems connect ratios to everyday life. Questions about sharing sweets or comparing heights build a natural understanding before formal ratio notation comes in later years.
Shapes, Geometry and Measurement
Year 3 children get to grips with shapes by exploring 2D and 3D forms with their hands. They build practical measurement skills that link maths to the real world.
2D and 3D Shapes Exploration
Year 3 children learn to spot and describe the properties of common shapes. 2D shapes like squares, rectangles, circles, triangles and pentagons pop up everywhere. They notice how these flat shapes differ from 3D ones such as cubes, spheres, pyramids and cylinders.
You can help your child by asking them to draw 2D shapes and talk about what they see. Count sides and corners together. Check if sides are straight or curved.
Key properties to explore:
- Number of sides and vertices
- Types of angles (right angles, acute, obtuse)
- Lines of symmetry
- Parallel and perpendicular lines
For 3D shapes, children spot them in different positions and angles. A cube always looks familiar, but a pyramid changes depending on where you stand. Let your child build shapes from modelling clay or blocks to get a real feel for faces, edges and vertices.
Tackling Measurement Questions
Measurement worksheets give Year 3 children a chance to practise measuring length, mass, capacity and time. They use rulers to measure in centimetres and millimetres. They read scales on weighing equipment and jugs.
Children measure the perimeter by adding up the edges of simple 2D shapes. Start with squares and rectangles before moving to trickier shapes.
Common measurement activities include:
- Measuring classroom objects with rulers
- Comparing lengths using standard units
- Calculating perimeter of rectangles and simple shapes
- Reading time on analogue and digital clocks
Real-world measurement tasks make a big difference. Baking gives you a reason to weigh ingredients together. Gardening lets your child track plant growth with a ruler.
Promoting Engagement Through Games and Challenges

Games and puzzles turn maths into something children want to do. They encourage strategic thinking and help children build confidence with numbers through play.
Maths Puzzles and Brain Teasers
Puzzles help Year 3 children practise key skills like addition, subtraction and multiplication whilst developing logical thinking. Number pyramids work well, with children filling in missing numbers by adding two boxes to find the one above. Sudoku grids for younger learners (using numbers 1-4 or 1-6) help with number recognition and spotting patterns.
Magic squares are a fun challenge too. Children arrange numbers so each row, column and diagonal adds up to the same number. This builds mental arithmetic and feels more like a game than a lesson.
Fun maths challenges that mix addition and subtraction with strategy help children become more resilient problem solvers. You can find puzzle sheets online or make your own based on what your child is learning. Begin with easy versions and make them harder as your child gets more confident.
Group and Individual Maths Challenges
Maths Bingo is a favourite fun maths game for practising the four operations. You call out questions like “5 × 3” and your child marks 15 on their board.
Times Table Card Flip turns multiplication into a fast-paced game. Children flip two cards, multiply the numbers, and race against the clock or each other. LearningMole has free video tutorials showing multiplication games that fit Year 3 objectives.
Individual challenges such as maths scavenger hunts let children work at their own pace. Hide number cards around the house or classroom and ask, “Find three cards that add up to 25.”
For groups, try relay races where teams solve one part of a problem at a time. Each child completes a step before handing over to the next. This encourages teamwork and mathematical thinking.
Selecting and Evaluating Year 3 Maths Resources

Choosing the right materials means checking they fit what your pupils need and cover all curriculum areas. Good resources support learning goals and help build a deeper mathematical understanding.
Matching Resources to Learning Objectives
First, work out which skill or concept your Year 3 pupils need to practise. If you’re teaching place value to 1,000, pick resources that focus on number representation, partitioning or comparing three-digit numbers.
Make sure the resource includes different levels of difficulty. Good maths resources move from concrete examples using counters or place value charts to pictures, then to abstract numbers.
Look for these features:
- Clear examples showing worked solutions
- Varied question types: fluency, reasoning, problem solving
- Visual aids like number lines, bar models or arrays
- Answer keys for quick checking and feedback
Try one worksheet or activity before using a whole set. Does it take the right amount of time? Can pupils work on it alone or do they need lots of help?
Ensuring Curriculum Coverage
The National Curriculum for Year 3 covers number, measurement, geometry and statistics. Keep track of which topics you’ve covered by making a checklist.
Around 70% of UK schools follow the White Rose Maths scheme, which splits Year 3 into blocks. Use curriculum-aligned activities that match your school’s plan.
Check for gaps in your resources. Maybe you have loads of multiplication worksheets but none for fractions or perimeter. Try to balance your collection.
Priority areas for Year 3:
- Addition and subtraction (formal written methods)
- 3, 4 and 8 times tables
- Fractions (unit and non-unit)
- Length, mass and capacity
- 2D and 3D shape properties
Review your resources each term to make sure you’re covering everything at the right time.
Frequently Asked Questions

Year 3 pupils (aged 7-8) work with numbers up to 1,000, practise their times tables, explore fractions with the same denominators, and build measurement and geometry skills. These questions share ways to support children using hands-on activities, printable materials, and fun approaches to maths.
What are some engaging maths activities for Year 3 pupils?
Sorting and classifying objects by their properties helps children spot shapes and patterns. Ask your child to group household items by size, weight, or number of sides.
Use everyday measurements to make learning stick. Cooking means weighing and measuring, while measuring furniture or rooms introduces perimeter and length in centimetres and metres.
Place value games using base ten blocks or counters let children break down three-digit numbers. Your child can show 347 as 3 hundreds, 4 tens and 7 ones, then swap parts to build number sense.
Hands-On Education has Year 3 maths activities with partition games, measurement tasks using real objects, and problem-solving challenges that match the National Curriculum.
Where can I find printable resources for practising times tables with Year 3 children?
The Year 3 curriculum focuses on the 3, 4 and 8 times tables, so pick worksheets that target these facts. Printable Year 3 maths worksheets for times tables are available for children aged 7-8 in Key Stage 2.
Many resources offer matching activities, fill-in-the-blank grids, and word problems that use multiplication in real life. Look for materials that help your child see multiplication as repeated addition, not just recall.
Curriculum-aligned Year 3 maths worksheets save planning time and cover all required topics. Free options exist, but double-check they fit the UK National Curriculum for your child’s year.
Can you suggest any interactive maths games suitable for Year 3 students’ abilities?
Online games should match Year 3 content: place value to 1,000, addition and subtraction with written methods, and the right times tables. BBC Bitesize has free interactive activities sorted by year and topic.
NRICH offers puzzles and investigations for lower Key Stage 2 that encourage reasoning. These activities get children to try different approaches, not just find one answer.
LearningMole features free videos and interactive resources for Year 3 topics like place value, multiplication, fractions, and shapes. Physical games work too. Try using playing cards for addition or multiplication challenges or play board games that involve counting, money, or measurement.
How can parents support their children’s learning of Year 3 maths concepts at home?
Learn alongside your child instead of feeling you need all the answers. Year 3 introduces column addition and subtraction, which might look different from what you remember, so read any notes or worksheets together.
Talk about maths in daily life without making it a formal lesson. Point out prices in shops, discuss time when planning your day, and estimate measurements before checking them.
Praise effort and small wins, not just right answers. If your child finds something tricky, go back to basics and use objects like coins or fraction bars to help.
Use the same maths words at home that teachers use in class. Words like ‘partition’, ‘exchange’, ‘numerator’, and ‘denominator’ become second nature with regular use.
What are the best ways to introduce Year 3 pupils to problem-solving and reasoning in maths?
Ask open-ended questions with more than one answer or approach. Instead of “What is 24 divided by 3?”, try “Find three ways to share 24 counters equally” to spark exploration.
Encourage your child to show their working and talk through their thinking. This helps you spot any confusion early and builds their confidence in explaining ideas.
Word problems using real-life situations make maths less abstract. Year 3 maths activities and resources often include practical problems with money, measurement, and time.
Challenge cards with “What if…?” questions take learning further. Try, “What if we changed this number?” or “Can you find another way?” to encourage creative thinking.
Could you recommend any fun maths projects that align with the Year 3 curriculum?
Try designing a classroom or bedroom layout. Use scaled drawings to explore measurement, perimeter, and shape properties. Let your child measure real furniture in centimetres. They can draw shapes for each item and work out the perimeter of the room.
A weekly timetable or calendar project makes time skills more interesting. Children plan activities, figure out how long things take, and put their day in order using both analogue and digital clocks.
Set up a shop or café role-play. This helps with money, addition, subtraction, and multiplication. Your child can make price lists, use real or pretend coins for transactions, and work out change with mental or written methods.
Fraction art projects bring maths and creativity together. Children design patterns or pictures, making sure certain fractions are specific colours. Maybe they create a flag: one-third red, one-quarter blue, and the rest white. It’s a fun way to add a bit of maths precision to art.



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