Natural Numbers and Basic Operations
This section introduces the fundamental concepts of numeri naturali and basic mathematical operations. Natural numbers are defined as the set of counting numbers starting from 0, represented as N = {0, 1, 2, 3, 4, 5, 6, 7...}.
Definition: Natural numbers are whole, infinite, and positive numbers that can be represented on an oriented half-line showing their ordered nature.
Highlight: The four basic operations possible with natural numbers are addition, subtraction, multiplication, and division.
Example: Powers are represented as repeated multiplications, such as 3³ = 81, where 3 is the base and 3 is the exponent.
The page also covers the properties of operations, including:
Vocabulary:
- Zero as the neutral element of addition
- One as the neutral element of multiplication
- Zero as the absorbing element of multiplication
The section concludes with an introduction to mcm e m.c.d., defining them as essential concepts for working with natural numbers.