Irrational Numbers Definitions

What type of number is π ?

• Rational

• Irrational

√3  

• rational

• irrational

√7

• Rational 

• Irrational

_____________ number is a number that cannot be written as a ratio of two integers.

• An integer

• A rational

• An irrational

• A repeating

Answer explanation

A rational number cannot be written as a fraction (ratio of two integers). This is because it is non-terminating and non-repeating.

Example:

$\sqrt{2}=1.414213562...$

Identify the irrational number.

• 0.5

• π

• -0.47

• 1/3

What is the definition of an irrational number?

• A complex number with a non-zero imaginary part.

• A real number that cannot be expressed as a fraction or a ratio of two integers.

• A number that can be expressed as a fraction or a ratio of two integers.

• A number that is not a whole number or a fraction.

An irrational number:

• goes on forever and does not repeat.

• can't be turned into a fraction.

• includes pi and √2

• All of the above.

Pick the vocabulary word that best matches with the following definition:

These numbers cannot be written as a/b, where a and b are both integers and b is not equal to zero. These numbers in decimal form do not repeat or terminate.

• Rational Numbers

• Integers

• Natural Numbers

• Irrational Numbers

Pick the vocabulary word that best matches with the following definition: These numbers cannot be written as a/b, where a and b are both integers and b is not equal to zero. These numbers in decimal form do not repeat or terminate.

• Rational Numbers

• Integers

• Natural Numbers

• Irrational Numbers

The number is a/an...

• Rational Number

• Irrational Number

• Integer

• Whole Number