Real Number System Vocabulary

Front

Real Numbers

Back

All rational and irrational numbers

Front

Rational Numbers

Back

Numbers expressed as \frac{a}{b}, where a and b are integers, b \neq 0

Front

Irrational Numbers

Back

Numbers that cannot be expressed as \frac{a}{b}

Front

Integers

Back

Whole numbers and their negatives

Front

Whole Numbers

Back

Non-negative integers

Front

Natural Numbers

Back

Positive integers starting from 1

Front

Absolute Value

Back

Distance from zero on the number line