Comparing and Ordering Numbers in Pre-Algebra

This video tutorial teaches how to compare and order real numbers using inequality signs. It explains the meanings of less than, greater than, less than or equal to, and greater than or equal to. The tutorial emphasizes the importance of converting numbers to the same form for accurate comparison and ordering. Examples are provided to demonstrate comparing values and ordering them in descending order. The lesson concludes with a summary of key points.

Which inequality sign represents 'less than'?

• >

• ≤

• <

• ≥

What does the bar underneath an inequality sign indicate?

• Not equal to

• Equal to

• Less than

• Greater than

Which term can be used to describe ordering numbers from least to greatest?

• Descending

• Ascending

• Decreasing

• Maximum to minimum

Why is it important to convert numbers to the same form when comparing or ordering them?

• To change their values

• To easily identify which is larger or smaller

• To make calculations easier

• To make them look similar

What is the decimal equivalent of the fraction -7/8?

• -0.5

• -0.625

• -0.75

• -0.875

Which is larger: -0.5 or -0.875?

• -0.5

• Cannot be determined

• They are equal

• -0.875

What is the approximate value of pi squared?

• 3.14

• 7.1

• 9.9

• 11.4

Which is larger: 5 + √60 or 4 + √63?

• They are equal

• Cannot be determined

• 4 + √63

• 5 + √60

What is the approximate value of the square root of 130?

• 11.1

• 11

• 11.4

• 9.9

In descending order, which number comes first: √130, 11.1, √121, or pi squared?

• √130

• √121

• pi squared

• 11.1