Real Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction 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

What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer.

Front

What is the square root of 36?

Back

6

Front

What is the square root of 81?

Back

9

Front

Is √2 a rational or irrational number?

Back

Irrational

Front

Estimate the square root of 50.

Back

Approximately 7.1

Front

What is the area of a square with a side length of 5 cm?

Back

25 cm²

Front

Which of the following is an example of an irrational number? (√8, ¾, 2, -1.325)

Back

√8

Front

What is the square root of 63?

Back

Approximately 7.9