Rational Numbers

The video tutorial introduces integers and rational numbers, explaining their properties and how they can be represented on a number line. It covers the concept of absolute value and opposites for integers, and defines rational numbers as those that can be expressed as fractions. The tutorial demonstrates how to convert fractions to decimals for easier plotting on a number line, and provides a step-by-step guide to plotting negative fractions. Finally, it teaches how to order rational numbers from least to greatest based on their position on the number line.

Which of the following is an example of an integer?

• 3

• 1/2

• 2.5

• 0.75

What is a rational number?

• A number that can be expressed as a fraction

• A number that cannot be written as a fraction

• A number that is always positive

• A number that is less than zero

How do you convert the fraction -1/4 to a decimal?

• -0.4

• -0.75

• -0.25

• -0.5

Where would you plot -8/10 on a number line?

• 8/10 to the left of 0

• 1/10 to the right of 0

• 8/10 to the right of 0

• Directly at 0

Which number is the smallest on a number line?

• -1

• -8/10

• -2/10

• -1/4