Ordering Real Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction or ratio 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

Is the number 2.48 rational or irrational?

Back

Rational

Front

Which of the following is rational: .211232112421125..., π, √25, √12?

Back

√25

Front

Is -17.5 a rational or irrational number?

Back

Rational

Front

What is the square root of 40 approximately between which two integers?

Back

6 & 7

Front

Which of the following numbers is irrational: √8, ¾, 2, -1.325?

Back

√8

Front

What is the decimal representation of a rational number?

Back

A rational number can have a terminating or repeating decimal representation.

Front

What is the square root of 25?

Back

5

Front

How can you determine if a number is rational?

Back

A number is rational if it can be expressed as a fraction a/b, where a and b are integers and b ≠ 0.