Understanding Integers and Number Lines

The video tutorial explains integers as positive and negative numbers, using examples like finding or losing money to illustrate their placement on a number line. It discusses the concept of opposites and their equal distance from zero, both horizontally and vertically. The tutorial also covers converting words into integers by identifying keywords such as gain, loss, above, and below. It further explains bank transactions as integers, with deposits and withdrawals affecting account balances. Finally, it provides practice examples to reinforce the learning.

What are integers?

• Fractions and decimals

• Only positive numbers

• Only negative numbers

• Positive and negative numbers

If you find $5, where would it be on a number line?

• At -5

• At 0

• At 5

• At 10

What is the opposite of the integer 5?

• 10

• 5

• 0

• -5

Where are positive numbers located on a number line?

• Above zero

• Below zero

• To the left of zero

• To the right of zero

How would you represent 20° on a vertical number line?

• Below zero

• At zero

• Above zero

• At -20

Which keyword indicates a positive integer?

• Decrease

• Gain

• Below

• Loss

What integer represents a gain of 10 yards in football?

• 20

• 10

• -10

• 0

If you earn $20, what integer does this represent?

• 0

• -20

• 40

• 20

What integer represents a withdrawal of $30?

• 0

• -30

• 30

• 60

What integer represents 12° below freezing?

• 24

• 0

• -12

• 12