Can You Remember What On Earth Surds Are?

Were you paying attention in GCSE Maths?

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.