Rule of Three for KS2

Fun and easy examples for Key Stage 2 (Ages 7-11)

Ages 7-11

Welcome to Rule of Three for KS2!

Learning about proportions and the rule of three is fun! This page has special examples just for Key Stage 2 students. We use simple numbers and fun stories to help you understand how things work together in maths.

All our examples are designed for children aged 7-11 and follow the UK National Curriculum for Key Stage 2 Mathematics.

What is the Rule of Three?

The rule of three helps you find an answer when you know three numbers. It's like solving a puzzle!

Simple example: If 2 sweets cost 10p, how much do 5 sweets cost?

📚 KS2 Examples

Explore 20+ fun examples designed especially for KS2 students. Each example uses simple numbers and real situations that children understand, like sweets, toys, and sports!

View Examples →

📝 KS2 Worksheets

Download printable worksheets with practice problems perfect for KS2. Includes answer keys for teachers and parents. Different difficulty levels available!

Download Worksheets →

🎮 Interactive Calculator

Try our KS2-friendly calculator! It's designed with big buttons and simple numbers to help children practice the rule of three.

Use Calculator →

🎯 Fun Games

Learn through play! Our interactive games make learning proportions fun and engaging for KS2 students.

Play Games →

For Teachers and Parents

These resources are designed to support mathematical education at Key Stage 2 level:

Quick Example for KS2

Example: Sharing Sweets

Problem: If 3 children share 12 sweets equally, how many sweets do 5 children get?

Step 1: We know 3 children get 12 sweets

Step 2: We want to find how many sweets 5 children get

Step 3: Set up: 3 children → 12 sweets, 5 children → ? sweets

Step 4: Calculate: (12 × 5) ÷ 3 = 60 ÷ 3 = 20 sweets

Answer: 5 children get 20 sweets!

UK National Curriculum Alignment

Our KS2 resources support the following curriculum objectives:

Related Resources