Adding and Subtracting Rational Expressions

This video tutorial covers the real number system, explaining how numbers are classified into real, rational, irrational, integers, whole, and natural numbers. It provides examples and discusses the properties of each category, emphasizing the relationships between them. The tutorial also includes exercises to classify numbers and organize them within the real number system.

What symbol is used to represent real numbers?

• Q

• R

• N

• Z

Which of these numbers is an example of a rational number?

• Square root of 3

• Square root of 2

• Pi (π)

• 0.121212...

If a number can be expressed as a fraction, it is classified as:

• An integer

• A whole number

• A rational number

• An irrational number

Which type of numbers includes both positive and negative numbers, including zero?

• Irrational numbers

• Integers

• Whole numbers

• Natural numbers

Which of the following is a characteristic of whole numbers?

• Non-repeating decimals

• Starts from zero

• Includes negative values

• Non-terminating decimals

What does the variable 'N' represent in the number system?

• Non-terminating numbers

• Non-repeating numbers

• Negative integers

• Natural numbers

Tags

CCSS.8.NS.A.1

What is a common example of an irrational number?

• 2/3

• 0.333...

• Pi (π)

• 100

Tags

CCSS.8.NS.A.1

What type of number is represented by a non-terminating, non-repeating decimal?

• Irrational number

• Whole number

• Natural number

• Rational number

Tags

CCSS.8.NS.A.1

Which number set does the number 0 belong to?

• Irrational numbers

• Rational numbers

• Whole numbers

• Natural numbers

Which of the following numbers is classified as an integer?

• 0.75

• 5/2

• Pi (π)

• -3