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Adding Doubles

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  • 8 + 8 =
    16
  • 9 + 9 =
    18
  • 2 + 2 =
    4
  • 8 + 8 =
    16
  • 1 + 1 =
    2
  • 5 + 5 =
    10
  • 7 + 7 =
    14
  • 6 + 6 =
    12
  • 6 + 6 =
    12
  • 7 + 7 =
    14
  • 10 + 10 =
    20
  • 9 + 9 =
    18
  • 6 + 6 =
    12
  • 8 + 8 =
    16
  • 9 + 9 =
    18
  • 2 + 2 =
    4
  • 5 + 5 =
    10
  • 4 + 4 =
    8
  • 3 + 3 =
    6
  • 1 + 1 =
    2
  • 3 + 3 =
    6
  • 10 + 10 =
    20
  • 4 + 4 =
    8
  • 10 + 10 =
    20
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