1-Digit and 2-Digit Addition Worksheets
Our collection of 1-digit and 2-digit addition worksheets helps kids practice adding a one-digit number to a two-digit number, both without regrouping and with regrouping. Starting with no-regrouping problems builds a strong foundation before moving to regrouping (carrying), which is a key step toward multi-digit addition fluency.
1-digit and 2-digit addition (no regrouping) - #1
1-digit and 2-digit addition (no regrouping) - #5
1-digit and 2-digit addition (no regrouping) - #2
Mental Math - Doubles and Near Doubles - #8
1-digit and 2-digit addition (no regrouping) - #3
1-digit and 2-digit addition (with regrouping) - #2
1-digit and 2-digit addition (with regrouping) - #6
1-digit and 2-digit addition (no regrouping) - #4
1-digit and 2-digit addition (with regrouping) - #4
1-digit and 2-digit addition (with regrouping) - #3
1-digit and 2-digit addition (with regrouping) - #7
1-digit and 2-digit addition (with regrouping) - #5
1-digit and 2-digit addition (with regrouping) - #1
Mental Math - Doubles and Near Doubles - #7
Mental Math - Doubles and Near Doubles - #6
Mental Math - Doubles and Near Doubles - #5
Mental Math - Doubles and Near Doubles - #4
Mental Math - Doubles and Near Doubles - #3
Mental Math - Doubles and Near Doubles - #2
Once your child is comfortable adding 1-digit and 2-digit numbers, the natural next step is 2-digit addition, where both numbers being added have two digits. If they need more repetition with the basics first, our single digit addition worksheets are a good place to build extra confidence.
1-Digit and 2-Digit Addition FAQ
What does "1-digit and 2-digit addition" mean?
It means adding a single-digit number (0–9) to a two-digit number (10–99), such as 7 + 23. This is a common intermediate step between single-digit addition and full 2-digit addition, where both numbers have two digits.
When should my child move from no-regrouping to regrouping problems?
Once your child can confidently solve no-regrouping problems without hesitation, they're usually ready for regrouping (carrying) problems. There's no strict age cutoff; readiness depends more on comfort with basic addition facts and place value than grade level alone.
