Addition With Regrouping
Free printable addition with regrouping worksheets. Every problem carries, in two-digit column format, with an optional answer key.
Every problem on this sheet carries. The generator filters out any pair of two-digit numbers whose ones column adds to less than ten, so a student cannot get through the page without regrouping once - which is the difference between practising carrying and practising addition.
That is the point of drilling it this way, and also its limitation: a page where every problem carries teaches the mechanic, but it does not teach the judgement of when to carry. Once it is solid, switch Regrouping to Both so the page mixes carrying and non-carrying problems and the decision comes back.
What this worksheet covers
- Add two-digit numbers where the ones column always carries
- Write the carried ten above the tens column
Common Core standards
- 2.NBT.B.5 Fluently add and subtract within 100 using place-value strategies.
Frequently asked questions
What does regrouping mean in addition?
When the digits in one column add to ten or more, the ten is carried into the next column. It is the same thing as carrying; regrouping is the term most current curricula use.
How do I get problems that never carry?
Set Regrouping to No Regrouping and every problem on the page will add without carrying.
Can I make these three-digit?
Yes - set Digits to 3 for both numbers and every problem becomes a three-digit addition that regroups.
Is there a subtraction version?
Yes, the Subtraction With Regrouping page does the same thing for borrowing.
What mistakes do students make when carrying?
Three are common. Forgetting to add the carried 1. Writing both digits of the ones total in the answer, so 47 + 38 becomes 715. And carrying when the ones add to less than ten. The Math Worksheets With Carry Boxes page gives the carried digit its own box, which helps with the first.