Understanding Opposites and Their Properties

The video tutorial explains the concept of opposites in numbers, using positive 4 and negative 9 as examples. It highlights two key properties: opposites are equidistant from zero on a number line, and their sum is always zero. The tutorial demonstrates these properties with examples, showing that the opposite of positive 4 is negative 4, and the opposite of negative 9 is positive 9. It emphasizes the importance of understanding these properties for mathematical operations involving opposites.

What is the opposite of positive 4?

• Positive 4

• Negative 4

• Positive 9

• Negative 9

If a number is negative, what is its opposite?

• The same negative number

• Zero

• A positive number

• A larger negative number

What is the first special property of opposite numbers?

• They sum to a positive number

• They are equidistant from zero

• They are both negative

• They are both positive

Which of the following pairs of numbers are equidistant from zero?

• 7 and -8

• 5 and 5

• 3 and -3

• 0 and 9

What is the sum of negative 9 and its opposite?

• 9

• 18

• 0

• -18