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Adding and Subtracting Integers

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  • It was 78 degrees in Grand Forks yesterday. The temperature dropped 12 degrees overnight. Using this information what would the temperature in Grand Forks be today?
    66 degrees
  • Christian runs down a hill 30 feet. Gavin runs 17 feet further down the hill than Christian. Use the expression (-30) + (-17) to find out Gavin's location on the hill.
    -47
  • -15-(10)=
    -25
  • Mrs. Holt wants to buy a toy for $49. She has a coupon for 10 dollars off. Use the expression 49 + (-10) to find how much money she spent on the toy.
    $39
  • 25+(-15)=
    10
  • A mountain climber climbs 23 feet up Mount Everest. Use an integer to represent how far the climber will need to travel to return to where he started.
    -23
  • -38+(-42)=
    -80
  • 62-(-8)=
    70
  • -99+99=
    0
  • 9+(-8)=
    1
  • 3+(-9)=
    -6
  • (-5)+(-27)=
    -32
  • -2-(-8)=
    6
  • -6-5=
    -11
  • 75-(-30)=
    105
  • (-3)+22=
    19
  • 9-(-7)=
    16