Study

Adding Groups of 10 to a given number

  •   0%
  •  0     0     0

      Back   Restart
  • 30 + 20 =
    50
  • 43 +10 =
    53
  • 27 + 20 =
    47
  • 73 + 20 =
    93
  • 74 + 10 =
    84
  • 61 + 20 =
    81
  • 10 + 10 =
    20
  • 47 + 10 =
    57
  • 34 + 10
    44
  • 24 + 10 =
    34
    • Your experience on this site will be improved by allowing cookies.