Study

Count on Tens and Ones

  •   0%
  •  0     0     0

  • 44 + 3 =
    47
  • 71 + 9 =
    80
  • 47 + 2 =
    49
  • 85 + 20 =
    105
  • 4 + 3 =
    7
  • 66 + 2 =
    68
  • 13 + 30 =
    43
  • 30 + 22 =
    52
  • 10 + 88 =
    98
  • 25 + 3 =
    28
  • 3 + 20 =
    23
  • 34 + 30 =
    64
  • 88 + 1 =
    89
  • 47 + 20 =
    67
  • 79 + 20 =
    99
  • 56 + 40 =
    96
  • 13 + 3 =
    16
  • 50 + 14 =
    64
  • 12 + 2 =
    14
  • 33 + 3 =
    36
  • 1 + 3 =
    4