Study

Addition and Subtraction within 20

  •   0%
  •  0     0     0

      Back   Restart
  • 11-1=
    10
  • 5+4=
    9
  • 18-7=
    11
  • 6+10=
    15
  • 7+6=
    13
  • 2+18=
    20
  • 16-3=
    13
  • 18-7=
    11
  • 10-4=
    6
  • 17-2=
    15
  • 3+8=
    11
  • 4+4=
    8
  • 1+11=
    12
  • 7+8=
    15
  • 19-6=
    13
  • 15-6=
    9
  • 16-5=
    11
  • 14-4=
    10
  • 7+3=
    10
  • 9+3=
    12
  • 9+7=
    16
  • 14+5=
    19
  • 20-11=
    9
  • 10-8=
    2
    • Your experience on this site will be improved by allowing cookies.