Irrational Numbers (Math Masters)

What is an irrational number?

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

• A number with non-terminating, non-repeating decimals

• A number that terminates in its decimal form

• A number that is always negative

Which of these numbers is irrational?

• √7

• ⅔

• .5

• ⁴⁄₉

What is the approximate value of √5?

• 2.449

• 1.414

• 2.236

• 1.732

Which of these is a rational number?

• √3

• ½

• √6

• π

Which of these values is irrational?

• ¼

• √11

• 0.75

• 2

What is the decimal approximation of e (Euler’s number)?

• 2.71828

• 3.14159

• 1.41421

• 2.64575

Which of these sums is irrational?

• 2 + √3

• 1 + 1

• 3 + 0.5

• 6 + 2

What is √13 rounded to three decimal places?

• 3.606

• 3.142

• 2.236

• 2.718

Which of these results is irrational?

• √9

• ⅚

• √8

• ¾

What is the approximate value of √14?

• 3.742

• 2.236

• 3.162

• 2.828