Classifying Numbers

Front

What is a real number?

Back

A real number is any number that can be found on the number line, including both rational and irrational numbers.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

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 whole number?

Back

A whole number is a non-negative integer, which includes zero and all positive integers.

Front

What is a natural number?

Back

A natural number is a positive integer, starting from 1 and going upwards (1, 2, 3, ...).

Front

Classify the number 6.7.

Back

6.7 is a real number and a rational number.

Front

Which of the following is a whole number: 9, \frac{10}{9}, -3 \frac{1}{2}, 2 \frac{2}{3}?

Back

9 is a whole number.

Front

Is -23 a rational number?

Back

Yes, -23 is a rational number because it can be expressed as \frac{-23}{1}.

Front

Is 2 a natural number?

Back

True, 2 is a natural number.

Front

Which of the following is a whole number: -2, -10, 10, -1?

Back

10 is a whole number.