What is a surd?
What is a surd?
A surd is an irrational root left in exact form, such as 2\sqrt{2}2 or 5\sqrt{5}5. A square root like 36\sqrt{36}36 is not a surd because it simplifies exactly to 666.
What is a surd?
What is a surd?
A surd is an irrational root left in exact form, such as 2\sqrt{2}2 or 5\sqrt{5}5. A square root like 36\sqrt{36}36 is not a surd because it simplifies exactly to 666.
Step-by-step lessons covering AQA GCSE Maths Surds for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.