Flashcards covering fundamental numerical concepts.
What is the most fundamental concept in mathematics representing quantity or value?
A number.
Numbers are used to represent {{c1::quantity}}, order, and magnitude.
What are the basic building blocks of arithmetic?
Numbers.
What is the simplest form of a number, often used for counting?
A natural number (or counting number).
The set of {{c1::natural numbers}} typically starts with 1 (1, 2, 3, ...).
What is the number that represents 'nothing' or an empty quantity?
Zero (0).
When {{c1::zero}} is included with natural numbers, the set is often called whole numbers.
What are numbers that can be expressed as a fraction p/q, where p and q are integers and q is not zero?
Rational numbers.
Numbers like 1/2, -3/4, and 5 (which is 5/1) are examples of {{c1::rational numbers}}.
What are numbers that cannot be expressed as a simple fraction, like pi or the square root of 2?
Irrational numbers.
The number {{c1::pi (π)}} is a famous example of an irrational number.
What is the set of all rational and irrational numbers called?
Real numbers.
The number line is a visual representation of the {{c1::real numbers}}.
What is the process of combining numbers to find a new value?
Arithmetic operation (e.g., addition, subtraction, multiplication, division).
Addition, subtraction, multiplication, and division are the four basic {{c1::arithmetic operations}}.