Exploring Rational Numbers and Their Properties

The video tutorial covers rational numbers, including natural, whole, and integer numbers. It explains rational numbers as integers plus fractions and decimals. The concept of absolute value is introduced, emphasizing its always positive nature. Examples are provided to compare numbers using absolute value, and the importance of converting numbers to the same format for comparison is highlighted.

What are natural numbers?

• Numbers you can count on your hands and feet

• Numbers that include fractions

• Numbers that include zero

• Numbers that include negative values

Which of the following is a whole number?

• 1.5

• 3/4

• -2

• 0

What additional numbers do integers include compared to whole numbers?

• Negative numbers

• Decimals

• Irrational numbers

• Fractions

Which of the following is a rational number?

• √2

• e

• 1/2

• π

How can a decimal be considered a rational number?

• If it is a repeating decimal

• If it can be written as a fraction

• If it is a terminating decimal

• If it is an irrational number

What is the absolute value of -5?

• 0

• 5

• 10

• -5

What does the absolute value of a number represent?

• Its distance from the smallest number

• Its distance from the largest number

• Its distance from one

• Its distance from zero

Which symbol represents absolute value?

• | |

• { }

• ( )

• [ ]

What is the absolute value of -1/2?

• -1/2

• 0

• 1/2

• 2

How should you compare numbers in different formats?

• Compare them as they are

• Convert them to the same format

• Ignore the format

• Use the larger format