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Simple addition and subtraction

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  • 0+10
    10
  • 2-2
    0
  • 10-0
    10
  • 10-5
    5
  • 4+1
    5
  • 7-3
    4
  • 5+2
    7
  • 2+2
    4
  • 6-4
    2
  • 7+1
    8
  • 5-3
    2
  • 3+2
    5
  • 6+2
    8
  • 8-4
    4
  • 8-3
    5
  • 8+2
    10
  • 6+3
    9
  • 7+3
    10
  • 6+4
    10
  • 6-3
    3
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