Forming Expressions and Equations for 11+ Maths
21 October 2026
Why forming expressions and equations matters
Understanding how to form mathematical expressions and equations is a key skill for children preparing for the 11+ exam. It helps them translate word problems into algebra, making it easier to solve questions and build confidence.
What is an expression
An expression is a way of writing a calculation using numbers, letters and mathematical symbols. For example, 3x + 4 is an expression. Here, x stands for an unknown number.
From words to equations
When a problem gives you information about a situation, you can turn it into an equation. An equation is simply an expression set equal to a value. Solving equations helps children find unknown numbers and understand relationships between quantities.
Step-by-step example
Step 1: Imagine a child has 3 times a number, x, and adds 4. This is written as 3x + 4.
Step 2: If this total is 19, we write the equation 3x + 4 = 19.
Step 3: Subtract 4 from both sides: 3x = 15.
Step 4: Divide both sides by 3: x = 5.
The answer is x = 5.
Building confidence through practice
Regular practice with forming expressions and equations helps children tackle more complex problems. It also prepares them for the types of questions they will face in the 11+ exam.
Key insight: Practising how to turn words into expressions and equations gives children a strong foundation in algebra, making them more confident and successful in 11+ Maths.
