Alert: You are not allowed to copy content or view source
Check Olympiad Exam Dates here | Buy Practice Papers for CREST Olympiads here | Individual Registration will close soon on CREST Olympiads. Apply now | Login here to participate in all India free mock test on every Saturday


A number that can't be simplified to remove a square root (or cube root etc). Examples: ? _2 (square root of 2) can't be simplified further so it is a surd ? _4 (square root of 4) CAN be simplified to 2, so it is NOT a surd