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OA.2 Addition

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  • 15+3=?
    18
  • 10+1=?
    11
  • 5+5=?
    10
  • 7+3=?
    10
  • 4+1=?
    5
  • 5+0=?
    5
  • 4+4=?
    8
  • 3+4=?
    7
  • 0+14=?
    14
  • 2+5=?
    7
  • 16+1=?
    17
  • 3+3=?
    6
  • 18+1=?
    19
  • 10+7=?
    17
  • 7+8=?
    15
  • 5+2=?
    7
  • 19+0=?
    19
  • 1+8=?
    9
  • 10+3=?
    13
  • 4+5=?
    9
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