Year 3 Maths (Aus Curriculum)

Introduction
In Year 3, students build on prior mathematical knowledge and experiences, developing fluency, problem-solving skills, and understanding of numbers, algebra, measurement, and statistics through practical and engaging learning activities.

All ACARA codes link to the official Australian Curriculum Year 3 Mathematics page, where you can view detailed descriptions for each topic.

Each topic will link to a post containing:
🧾 Printable Worksheets 🎥 Video Lesson 🔗 Curriculum Connection

🔢 Number

Develop number sense, fluency with operations, fractions, and problem-solving strategies

Topic	Subtopic / Focus	ACARA Code
Number and Place Value	– 🔢 Place Value Beyond 10,000 – 🖍️ Comparing Numeral Systems – 🧠 Naming and Writing Large Numbers –🧩 Predicting Numbers – 🥧 Ordering and Comparing Large Numbers	AC9M3N01
Fractions	– ✏️ What are Unit Fractions? Representing equal parts of a whole – 🔄 Fractions in Real Life: Hands-On Fraction Examples for Kids -🧠 Understanding Fractions Through Sharing \| Fractions and Division	AC9M3N02
Addition & Subtraction	– 🧩 Visual Place Value Models to Solve Big Numbers Easily – 💡Fast Math Tricks for Subtraction: Mental Math Shortcuts Explained -🧠 Flexible Math Strategies: Standard vs Non‑Standard Partitions Explained – 📚Easy Addition & Subtraction for Kids: Part-Part-Whole + Inverse Operations	AC9M3N03
Multiplication & Division	-🧠 Learn Arrays, Diagrams & Think Boards for Multiplication & Division -📝Mastering Multiplication and Division with Number Sentences – ✏️Solve Multiplication & Division Word Problems Easily – 📚 Multiplication & Division Through First Nations Stories	AC9M3N04
Estimation	– 🧠 Estimating Quantities in Real Life \| Nearest 10, 100 & 1000 – 💡Using Estimation to Check Addition Answers \| Reasonableness	AC9M3N05
Mathematical Modelling	– ✏️ Addition and Subtraction Word Problems – Bar Models Explained – 🧩 Equal Sharing & Division Word Problems – Multiplication & Division Linked – 📚 Multiplication & Division Word Problems – Groups, Arrays & Sharing	AC9M3N06
Algorithms & Patterns	– 🧠 Doubling and Halving Number Patterns Explained \| Easy Math Algorithms for Kids – 📝 Divisibility Rules for 2, 5 and 10 \| How to Identify Multiples Fast (Easy Math Tricks for Kids) – 💡 Multiply by 3 Trick: Double and Add Method \| Easy Mental Math Strategy for Kids – 🧩 How to Count 5c and 10c Coins Fast \| Money Math for Kids (Multiples of 5 and 10)	AC9M3N07

🧩 Algebra

Students explore relationships between addition, subtraction, multiplication, and division, using algebraic thinking and mental strategies.

Topic	Subtopic / Focus	ACARA Code
Addition & Subtraction Inverse Operations	– 🧠 Addition and Subtraction Word Problems with Missing Numbers – 🔢 Partitioning Numbers, Part-Part-Whole and Bar Models – ✏️Inverse Operations in Year 3: Finding Unknown Numbers -🧩 Inverse Operations: Connecting Addition and Subtraction	AC9M3A01
Mental Computation	– 🔢 Number Bonds and Partitioning – All ways to split a number – ✏️Subtraction Using Addition Facts (Fact Families Explained) – 🧩 Extending Addition and Subtraction to Larger Numbers	AC9M3A02
Multiplication & Division Facts	– ✏️ Learn 3, 4, 5 & 10 Times Tables Fast Using Skip Counting and Patterns – 💡Multiplication Facts for Kids: Step-by-Step Practice, Patterns & Division Tips – 🧩 5 Times Table Tricks & Patterns for Kids – Learn Fast with Skip Counting	AC9M3A03

📏 Measurement

Develop understanding of metric units, time, angles, shapes, and spatial reasoning to describe and compare objects and environments

Topic	Subtopic / Focus	ACARA Code
Metric Units	– ✏️ How to Estimate Weight Using Grams and Kilograms for Kids – 📚 How to Estimate Liquid Volume: mL and L for Kids – 🧠 Centimetres vs Metres – How to Measure Length and Height Easily for Kids	AC9M3M01
Measurement & Comparison	📏 How to Measure Length with Rulers and Tape Measures \| Maths for Kids ⚖️ How to Measure Weight with Scales \| Grams & Kilograms for Kids 🥛 How to Measure Liquid Capacity \| Millilitres & Litres for Kids	AC9M3M02
Time Estimation	🌞 Understanding Time for Kids \| Planning Activities & Learning from the Sun, Moon and Stars ⏳ Estimating Time for Kids \| How Long Does It Take? (Minutes & Seconds Explained) ⏱️ Measuring Time for Kids \| Using Sand Timers & Digital Timers (Minutes & Seconds)	AC9M3M03
Time Reading	Describe relationship between hours and minutes on analog/digital clocks; read to the nearest minute	AC9M3M04
Angles	Identify angles as measures of turn; compare angles with right angles in everyday situations	AC9M3M05
Money	Recognise relationships between dollars and cents; represent money values in different ways	AC9M3M06

🟦 Space

Explore spatial reasoning by classifying, making, and representing objects and environments.

Topic	Subtopic / Focus	ACARA Code
Object Classification	Make, compare and classify objects, identifying key features and suitability for uses	AC9M3SP01
2D Representations	Interpret and create 2D representations of familiar environments; locate landmarks and objects relative to each other	AC9M3SP02

📊 Statistics

Students collect, record, and represent data in meaningful ways

Topic	Subtopic / Focus	ACARA Code
Data Acquisition	Acquire data for categorical and discrete variables; record using tables, spreadsheets, or surveys	AC9M3ST01
Data Representation	Create and compare graphical representations of data; interpret in context	AC9M3ST02
Statistical Investigations	Conduct guided investigations for categorical/discrete data; interpret results in context	AC9M3ST03

🎲 Probability

Explore chance by predicting outcomes, conducting experiments, and understanding variation.

Topic	Subtopic / Focus	ACARA Code
Chance Events	Identify everyday events involving chance; describe outcomes as likely/unlikely; explain reasoning	AC9M3P01
Repeated Experiments	Conduct repeated chance experiments; record outcomes; describe variation in results	AC9M3P02

📚 Related Resources

💡Year 1 Math Worksheets & Videos

💡Year 2 Math Worksheets & Videos

💡Year 4 Math Worksheets & Videos

💡Year 5 Math Worksheets & Videos

💡Year 6 Math Worksheets & Videos