Addition worksheets
Twenty two-digit addition problems, vertically stacked with room to carry — answer key included.
Best fit: 1st–2nd grade · Answer key included · Free, no sign-up
Answer key
The same sheet with every answer shown in blue — print it for marking, or hand it over for self-checking.
About these worksheets
Two-digit addition is where column arithmetic begins: line up the ones, add, carry into the tens. These twenty problems mix carrying and non-carrying sums so students can’t autopilot, and the vertical layout leaves space above each problem for the little carried 1. Print the answer key for self-checking — marking their own work is faster for you and better feedback for them.
Need a different set?
The generator makes unlimited versions of this worksheet — choose the operation and difficulty, and every click is a brand-new sheet with its own answer key.
Frequently asked questions
Do these problems include carrying?
The set mixes both — some sums carry into the tens, some don’t — so students have to look at the ones column instead of guessing the pattern.
What grade are these addition worksheets for?
Two-digit addition is core 1st–2nd grade work. For single-digit facts or three-digit sums, the generator makes those in one click.
Is the answer key included?
Yes, directly below the worksheet — the identical sheet with answers shown in blue.