Introduction to Numbers

This video from Firefly Lectures gives an introduction to number sets.

Note: All Firefly Lectures content is available for free at www.fireflylectures.com.

This next video from Firefly Lectures teaches us about some of the most important sets of numbers.

Note: All Firefly Lectures content is available for free at www.fireflylectures.com.

These notes from the maths support centre SUMS at NUI Galway introduce different types of numbers (natural numbers, integers, rational, irrational and real numbers) and their notations.

A pdf of this document can be downloaded here.