Free November promotion: everything is free until 30 November 2026 — every subject, unlimited practice.

Surds and irrational numbers

Simplify and operate on square-root surds and tell rational from irrational numbers.

In review 3rd Year Higher
Helps to know first: Indices and roots
15practice questions

Fill the gaps: 1 · Multiple choice: 7 · Select all that apply: 1 · Numeric answer: 5 · Short answer: 1

Each question has up to three hints, a worked explanation, and is tracked in your progress and review plan.

Practise this topic

Try a question

Multiple choice
Simplify √50.
Choose one answer
Hint 1

Look for the largest square number that divides into 50.

Create a free account to save your progress.