Definition
Arithmetic is the most fundamental branch of mathematics, focusing on the properties and manipulation of numbers through basic operations.
Why It Matters
It is the bedrock of all quantitative reasoning and the language of daily resource management. Without it, we cannot understand scale or begin to engage with more advanced forms of science and logic.
Core Concepts
- The Four Operations: Addition, subtraction, multiplication, and division.
- Number Systems: Integers, fractions, decimals, and percentages.
- Order of Operations: The sequence in which multi-step calculations are performed (PEMDAS/BODMAS).