Add a one-digit number to a two-digit number – with regrouping

Learn with an example

✒️Add. 8 +12=_____

  • Add the ones. Add 8+2. Remember to carry over.
  • 18+12=0
  • Add the tens. Add 1+1.
  • 18+12=20
  • The sum is 20.

✒️Add. 9 +13=_____

  • Add the ones. Add 9+2. Remember to carry over.
  • 19+13=2
  • Add the tens. Add 1+1.
  • 19+13=22
  • The sum is 22.

✒️Add. 6 +19=_____

  • Add the ones. Add 6+9. Remember to carry over.
  • 16+19=5
  • Add the tens. Add 1+1.
  • 16+19=25
  • The sum is 25.

Let’s practice!