Understanding Opposites of Numbers

This video tutorial explains the concept of opposites using a number line. It covers how to locate positive and negative numbers, the role of zero, and how to find opposites of numbers. The tutorial includes examples on both horizontal and vertical number lines, emphasizing that the opposite of a positive number is negative and vice versa. The lesson concludes with a summary of the key points discussed.

What is the opposite of a positive number?

• A negative number

• The same number

• Zero

• Another positive number

Where would you locate positive 5 on a number line?

• 5 units above zero

• 5 units to the left of zero

• 5 units to the right of zero

• At zero

What is a common mistake when thinking about opposites?

• Thinking opposites are always positive

• Thinking opposites are always zero

• Thinking opposites are always negative

• Thinking opposites are always the same number

What separates positive and negative numbers on a number line?

• Negative numbers

• Infinity

• Positive numbers

• Zero

If you locate positive 11 on a number line, where is its opposite?

• 11 units to the right of zero

• 11 units above zero

• 11 units to the left of zero

• At zero

How do you find the opposite of a number on a vertical number line?

• By going the same number of units in the opposite direction from zero

• By going the same number of units up from zero

• By staying at zero

• By going the same number of units down from zero

What is the opposite of negative 18?

• Positive 18

• Negative 36

• Negative 18

• Zero

What is the opposite of positive 25?

• Positive 50

• Negative 25

• Zero

• Positive 25

What is the opposite of negative 24?

• Zero

• Negative 48

• Negative 24

• Positive 24

What is the opposite of negative 21?

• Negative 42

• Zero

• Positive 21

• Negative 21