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Absolute Value. Plot the following points and its opposite number on the number line:. -7 5 6 -2 8 -4 . Vocabulary. Absolute Value- the number’s distance from 0 on the number line.

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Presentation Transcript
vocabulary
Vocabulary
  • Absolute Value- the number’s distance from 0 on the number line.
  • Example: The absolute value of -3 is 3 because -3 is 3 units from 0. The absolute value of -3 is written |-3|
real world example
Real World Example
  • The altitude of an airplane changed by -50 feet in a minute while preparing to land at Midway Airport. How many feet did the airplane travel during the minute?
real world example1
Real World Example

The balance on Ms. Seweryn’s credit card statement is listed as -$125. What is the amount of her debt to the credit card company?

whiteboards
Whiteboards

Find the absolute value:

|-7|

|5|

|-20|

|9|

|-27|

absolute value game memory
Absolute Value Game- Memory!
  • Rules:
  • Work with a partner.
  • When you have your cards, place all cards face down on desk.
  • Pick up a card. Try and find the card that has the matching absolute value as the card in your hand.
  • If the card you pick up is not the match, flip both cards over and place back on desk.
  • Take turns and continue until all pairs are found.
  • Whoever has the most pairs at the end of the game is the winner!
discussion
Discussion
  • Do you think a number’s absolute value can be 0? If so, which number has an absolute value of 0? If not, explain.
  • If a number is _________, then the number is equal to its absolute value.
  • If a number is _________, then the number is less than its absolute value.
  • Negative numbers are less than positive numbers. Does this mean that the absolute value of a negative number must be less than the absolute value of a positive number? Explain.
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