Addition < 20

Back to contents

Click here to start practising.
  • 15+2
    17
  • 12+15
    27
  • 16+13
    29
  • 4+16
    20
  • 9+19
    28
  • 17+17
    34
  • 5+5
    10
  • 15+15
    30
  • 10+19
    29
  • 11+11
    22