Study

Regrouping with Ones

  •   0%
  •  0     0     0

      Back   Restart
  • 16 + 5
    21
  • 28 + 5
    33
  • 44 + 8
    52
  • 29 + 3
    32
  • 57 + 6
    63
  • 32 + 9
    41
  • 85 + 5
    90
  • 32 + 9
    41
  • 37 + 5
    42
    • Your experience on this site will be improved by allowing cookies.