The Real Number System and Comparing Review

Front

What is the Real Number System?

Back

The Real Number System includes all the numbers that can be found on the number line, including rational numbers (like integers and fractions) and irrational numbers (like √2 and π).

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. Examples include 1/2, -3, and 0.75.

Front

What is an Irrational Number?

Back

An Irrational Number is a number that cannot be expressed as a simple fraction. Its decimal representation goes on forever without repeating. Examples include √2 and π.

Front

Estimate √99 to the nearest tenth.

Back

9.9

Front

What does it mean when a decimal repeats or ends?

Back

It is called a Rational Number.

Front

How do you compare numbers in scientific notation?

Back

Convert them to decimal form or compare their exponents and coefficients to determine which is greater.

Front

What is the approximate value of √50?

Back

Between 7 and 8.

Front

Classify -3/4 into the smallest subset of numbers.

Back

Rational Number.

Front

What is the difference between a Natural Number and an Integer?

Back

Natural Numbers are positive whole numbers (1, 2, 3,...), while Integers include all whole numbers (positive, negative, and zero).

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100. For example, 52% becomes 0.52.