Study

odejmowanie w zakresie 20 z przekroczeniem progu ...

  •   0%
  •  0     0     0

      Back   Restart
  • 20 - 9 =
    11
  • 16 - 7 =
    9
  • 13 - 9 =
    4
  • 11 - 5 =
    6
  • 11 - 3 =
    8
  • 14 - 5 =
    9
  • 13 - 7 =
    6
  • 15 - 8 =
    7
  • 12 - 7 =
    5
  • 17 - 9 =
    8
  • 12 - 8 =
    4
  • 16 - 10 =
    6
    • Your experience on this site will be improved by allowing cookies.