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TechMathII - 1.4and1.5 - ManipulatingNumbers
 

TechMathII - 1.4and1.5 - ManipulatingNumbers

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    TechMathII - 1.4and1.5 - ManipulatingNumbers TechMathII - 1.4and1.5 - ManipulatingNumbers Presentation Transcript

    • Bell Ringer
      • Find the absolute value of each.
      • | -9 + 5 |
      • | 31 – 142 |
      • | -18 + -67 |
      • | -32 – (-12) |
    • Adding/Subtracting Real Numbers
      • 98 + 89
      • -67 + 17
      • -18 + -59
      • 1/8 + 1/32
      • -2/15 + 3/10
    • You try!
      • 1) 3/8 – 9/12
      • 2) -2/3 + 9/12
      • 3) 12 + 2/3
      • 4) 19 – 21/2
    • Multiplying/Dividing Real Numbers
      • -4 * 2.5
      • ½ * 2/3
      • -4/9 * 6/23
      • 1/8 1/12
      • -7/12 3/11
    • You try 2!
      • 1) -3/5 * -4/17
      • 2) -1/5 3/11
      • 3) 1/14 * 6/7
      • 4) 7/13 5/26
    • Average - add up and divide by # of items
      • Find the average of each set of numbers.
      • 12, 15, 7, 21, 18, 19, 20
      • 25, 29, 33, 28, 28, 27
      • 89, 95, 86, 81, 97, 82, 80, 81, 93, 95, 97, 80
    • You try!
      • Find the average of each set of numbers.
      • 17, 19, 12, 24, 28, 13, 22, 20, 14, 19, 21
      • 42, 49, 53, 45, 40, 39, 56, 44, 47
      • 108, 111, 102, 115, 101, 99, 112
    • Homework
      • Manipulating Numbers WS