Flashcardizz - Classifying Numbers

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a fraction of two integers. Its decimal representation is non-repeating and non-terminating.

Front

What is the square root of 16?

Back

The square root of 16 is 4.

Front

Is 4π a rational or irrational number?

Back

4π is an irrational number because π (pi) is irrational.

Front

What is -√4?

Back

-√4 is rational because it equals -2, which can be expressed as a fraction (-2/1).

Front

Classify -0.65. What categories apply?

Back

-0.65 is classified as rational and real.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

Give an example of an irrational number.

Back

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

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 0 a rational number?

Back

Yes, 0 is a rational number because it can be expressed as 0/1.

Front

What is the decimal representation of 1/3?

Back

The decimal representation of 1/3 is 0.333..., which is non-terminating and repeating.