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Can You Remember What On Earth Surds Are?

Were you paying attention in GCSE Maths?

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If you don't remember them from GCSE Maths, surds are basically just irrational numbers expressed as a square root.

So √3 is a surd, but √4 is not because it can be further simplified to 2.

In this quiz you just have to pick which answer shows the surd in its simplest form. Ready? Let's go.