Classifying Real Numbers

Front

Rational numbers are

Back

numbers that can be expressed in fraction form.

Front

Natural numbers are

Back

1, 2, 3, 4, ...

Front

Irrational numbers are

Back

numbers that can't be expressed as terminating or repeating decimals or fractions.

Front

Whole numbers are

Back

0, 1, 2, 3, 4, ...

Front

Integers are

Back

..., -3, -2, -1, 0, 1, 2, 3, ...

Front

What is the set of all natural numbers?

Back

The set of natural numbers includes all positive integers starting from 1: {1, 2, 3, ...}.

Front

What is the difference between whole numbers and natural numbers?

Back

Whole numbers include all natural numbers plus zero: {0, 1, 2, 3, ...}.

Front

What are negative integers?

Back

Negative integers are the set of integers less than zero: {..., -3, -2, -1}.

Front

What is a terminating decimal?

Back

A terminating decimal is a decimal that has a finite number of digits after the decimal point.

Front

What is a repeating decimal?

Back

A repeating decimal is a decimal that has one or more digits that repeat infinitely.