8.NS.2 Estimate and Compare Irrational 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 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

Estimate the square root of 20. Between which two integers does it lie?

Back

√20 is between 4 and 5.

Front

Is the number 77/3 rational or irrational?

Back

Rational.

Front

Is the number -7341.2 rational or irrational?

Back

Rational.

Front

What is the best estimate of the square root of 63?

Back

7.9.

Front

Order the following numbers from greatest to least: 3π, √10, 3.25.

Back

3π, 3.25, √10.

Front

What is the approximate value of π?

Back

π is approximately 3.14.

Front

How do you determine if a number is rational?

Back

A number is rational if it can be expressed as a fraction of two integers.

Front

What is the square root of 10 approximately?

Back

√10 is approximately 3.16.