• 1 + 8
  • 2 + 5
  • 1 + 6
  • 3 + 5
  • This is a way to make 9:
  • 1 + 8 = 9
  • These are not ways to make 9:
  • 2 + 5 = 7
    1 + 6 = 7
    3 + 5 = 8
  • 3 + 6
  • 4 + 3
  • 3 + 5
  • 3 + 3
  • This is a way to make 8:
  • 3 + 5 = 8
  • These are not ways to make 8:
  • 3 + 6 = 9
  • 4 + 3 = 7
  • 3 + 3 = 6
  • 4 + 2
  • 3 + 1
  • 6 + 1
  • 4 + 1
  • This is a way to make 5:
  • 4 + 1 = 5
  • These are not ways to make 5:
  • 4 + 2 = 6
  • 3 + 1 = 4
  • 6 + 1 = 7