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 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

Give an example of an irrational number.

Back

An example of an irrational number is √2 or π (pi).

Front

What is the square root of 2?

Back

The square root of 2 is an irrational number approximately equal to 1.414.

Front

What is the value of pi (π)?

Back

Pi (π) is an irrational number approximately equal to 3.14159.

Front

Which number is between 7 and 8?

Back

The number √59 is between 7 and 8.

Front

What is the exponent form for the factors 5 x 5 x 5?

Back

The exponent form for the factors 5 x 5 x 5 is 5^3.

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.

Front

Is the number 0.75 rational or irrational?

Back

0.75 is a rational number because it can be expressed as 3/4.

Front

Is the number √3 rational or irrational?

Back

√3 is an irrational number.