👉 Quantity math, also known as arithmetic or basic number theory, is the branch of mathematics that deals with the properties and relationships of numbers, focusing on operations like addition, subtraction, multiplication, and division. It involves understanding concepts such as integers, fractions, decimals, ratios, proportions, and basic algebraic expressions. Key topics include finding sums and differences, solving equations, understanding divisibility rules, and exploring number patterns. This foundational area is crucial for more advanced mathematical concepts, including algebra, geometry, and calculus, as it lays the groundwork for logical reasoning and problem-solving skills essential in various scientific and real-world applications.