This video will look at: The difference between rational and irrational numbers. The 4 main types of rational numbers, which are integers, fraction, terminating decimals and recurring decimals. 2 examples of irrational numbers: surds and pi KS3 - Don't need to know for your course, but it will be helpful GCSE Foundation - Don't need to know for your course, but it will be helpful GCSE Higher - All suitable Maths Playlist:    • GCSE Maths (9-1)   GCSE Chemistry playlist: https://www.youtube.com/watch?v=fN8kH9Vvqo0 GCSE Biology Playlist: https://www.youtube.com/watch?v=--dIBinUdeU GCSE Physics Playlist: https://www.youtube.com/watch?v=aHVJfRxeAxo