The numbers 0, 1, and 2 are fundamental concepts in mathematics. 0 represents the absence of quantity and is the starting point for counting. It is also used as a placeholder in our number system. 1 is the first positive integer and signifies a single unit or entity. It is often associated with individuality. 2 follows 1 and represents a pair or a couple, indicating two units. Together, these numbers form the basis for more complex mathematical operations and concepts.