Use make-ten to add

~9 min

Move some ones to make a ten, then add the rest.

Make ten from ones

Make ten from ones
  • If a number is close to 10, you can move some ones from the other addend to fill it up to 10. Then you have a 10 and some extra ones.

If a number is close to 10, you can move some ones from the other addend to fill it up to 10. Then you have a 10 and some extra ones.

💡 Look for 8 or 9, because they need only a few to reach 10.