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Integers & Absolute Value. Lesson 1-4. Math Vocabulary. Integer – a whole number and its opposite 3 and -3, -15 and +15 Absolute Value – the distance between a number and zero. The Number Line. Negative Positive _______________________________________________ Point of Origin

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Presentation Transcript

Math vocabulary
Math Vocabulary

  • Integer –

    a whole number and its opposite

    3 and -3, -15 and +15

  • Absolute Value –

    the distance between a number and zero


The number line
The Number Line

Negative Positive

_______________________________________________

Point of

Origin

same order but typical # order but 

decrease in size increase in size


Examples
Examples…

_______________________________________________

Name the integer for :

A = In order from least to

greatest:

B = -5 -10 3 0 6 -1

C =


Absolute value
Absolute Value

  • Based on distance

  • means… the answer always “comes out” POSITIVE

    l -2 l = 2

    l 5 l = 5

    l -5 + 8 l = l 3 l = 3

    - l 4 l = -4

    - l -13 l = -13


Practice
Practice…

Name the integer:

  • A profit of $250

  • 18 degrees below 0

  • The opposite of 9

  • The opposite of the opposite of eight

  • l -26 l =


Homework
Homework

p. 19 #11-16, 20-32


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