Add a two-digit and a one-digit number – with regrouping
Learn with an example
Add.
12 + 8 =
Add the ones. Add 2+8. Remember to carry over.

Add the tens. Add 1+1.

The sum is 20.
Add.
2 + 19 =
Add the ones. Add 2+9. Remember to carry over.

Add the tens. Add 1+1.

The sum is 21.
Let’s practice!🖊️