Classification of 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 irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer.

Front

What is a terminating decimal?

Back

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

Front

What is a repeating decimal?

Back

A repeating decimal is a decimal fraction that eventually repeats the same sequence of digits indefinitely.

Front

Is the number 0.75 rational or irrational?

Back

Rational, because it can be expressed as 3/4.

Front

Is the number √2 rational or irrational?

Back

Irrational, because it cannot be expressed as a fraction of two integers.

Front

What type of number is 1/4?

Back

Rational, as it can be expressed as a fraction of two integers.

Front

What type of number is 5?

Back

Rational, because it can be expressed as 5/1.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions.