Real Number Systems

Front

What is a natural number?

Back

A natural number is a positive integer starting from 1, used for counting (e.g., 1, 2, 3, ...).

Front

What is a whole number?

Back

A whole number is a non-negative integer, including zero (e.g., 0, 1, 2, 3, ...).

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero (e.g., -2, -1, 0, 1, 2).

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero (e.g., 1/2, 3, -4).

Front

What is an irrational number?

Back

An irrational number cannot be expressed as a simple fraction; its decimal representation is non-repeating and non-terminating (e.g., √2, π).

Front

What is the real number system?

Back

The real number system includes all rational and irrational numbers, representing all possible values along the number line.

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

How do you classify the number 3?

Back

3 is a natural number, whole number, integer, rational number, and real number.

Front

What is the result of (10 + 33 - 3) ÷ 8?

Back

The result is 5.

Front

Classify the number √35.

Back

√35 is an irrational number.