1.2: Rational and Irrational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and the denominator are integers, and the denominator is not zero.

Tags

CCSS.5.NBT.A.2

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.

Tags

CCSS.8.NS.A.1

Front

Is 0.4444... a rational or irrational number?

Back

Rational

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

Is 2.25 a rational or irrational number?

Back

Rational

Front

Why are irrational numbers called irrational?

Back

Irrational numbers cannot be written as a fraction.

Tags

CCSS.8.NS.A.1

Front

Is 0.141414... a rational or irrational number?

Back

Rational

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

Give an example of an irrational number.

Back

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

Tags

CCSS.8.NS.A.1

Front

What is the decimal representation of a rational number like?

Back

The decimal representation of a rational number either terminates (ends) or repeats.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is the decimal representation of an irrational number like?

Back

The decimal representation of an irrational number is non-terminating and non-repeating.

Tags

CCSS.8.NS.A.1

Front

Can the number 1/3 be classified as rational or irrational?

Back

Rational