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Negative number addition and subtraction: word problems

Michael is doing an underwater handstand. His feet are sticking up 0.50.5 meters above the surface of the water. Michael's hands are 1.81.8 meters directly below his feet.
What is the position of Michael's hands relative to the surface of the water?
  • Your answer should be
  • an integer, like 66
  • a simplified proper fraction, like 3/53/5
  • a simplified improper fraction, like 7/47/4
  • a mixed number, like 1 3/41\ 3/4
  • an exact decimal, like 0.750.75
  • a multiple of pi, like 12 pi12\ \text{pi} or 2/3 pi2/3\ \text{pi}
meters