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Operations with Rational Numbers

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  • -1.25 + (-4.55)
    -5.8
  • -4.1 - 7.28
    -11.38
  • 5 3/5 - 7
    -1 2/5
  • Monday Tiffany's plant was 2 3/4 inches tall. By Friday, it was 8 1/8 inches tall. How much did the plant grow?
    10 7/8 inches
  • 68.79 - 9.18
    59.61
  • -2/3 - (-1/2)
    -1/6
  • Gas costs $2.88 per gallon. Albert filled up his car with 18 gallons. How much did it cost in all?
    51.84
  • 7/16 + 5/16
    12/16 = 3/4
  • 15.7 - (-6.4)
    22.1
  • 7.624 + (-0.05)
    7.574
  • 3/4 + 1/3 - 11/12
    1/6
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