Classifying Numbers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and denominator are integers, and the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it is a decimal that never ends and never repeats.

Front

Give an example of an irrational number.

Back

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer, such as 1, 4, 9, 16.

Front

What is a perfect cube?

Back

A perfect cube is a number that can be expressed as the cube of an integer, such as 1, 8, 27, 64.

Front

What is the difference between a whole number and an integer?

Back

Whole numbers are non-negative integers (0, 1, 2, ...), while integers include both positive and negative whole numbers.

Front

Is 0 an integer?

Back

Yes, 0 is considered an integer.

Front

What is a decimal that repeats?

Back

A decimal that repeats is a decimal number that has a digit or group of digits that repeat indefinitely, such as 0.333... or 0.142857142857... .

Front

What is a decimal that terminates?

Back

A decimal that terminates is a decimal number that has a finite number of digits after the decimal point, such as 0.5 or 2.75.