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Exercise 1

  • 1 + 9 + 9 =

  • 2 + 10 + 10 =

  • 4 + 10 + 9 =

  • 9 + 10 + 10 =

  • 3 + 9 + 10 =

  • 5 + 10 + 9=

  • 8 + 10 + 10 =

  • 10 + 10 + 9 =

  • 5 + 9 + 10 =

  • 7 + 10 + 10 =

  • 1 + 10 + 10 =

  • 3 + 9 + 9 =

  • 9 + 10 + 10 =

  • 5 + 9 + 9 =

  • 2 + 10 + 10 =

  • 1 + 10 + 9 =

  • 9 + 10 + 10 =

  • 3 + 9 + 9 =

  • 8 + 10 + 10 =

  • 9 + 10 + 9 =

  • 7 + 9 + 10 =

  • 1 + 10 + 10 =

  • 3 + 9 + 9 =

  • 9 + 10 + 10 =

  • 8 + 10 + 9 =

  • 10 + 9 + 10 =

  • 5 + 10 + 9 =

  • 7 + 10 + 10 =

  • 2 + 9 + 9 =

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