Add 2-digit and 1-digit numbers
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Free printable add 2-digit and 1-digit numbers worksheets for 2nd grade. Students add a single-digit number to a two-digit number with and without regrouping, applying place value understanding and efficient mental strategies. These mixed-format worksheets cover the full range of 2-digit plus 1-digit combinations students encounter in 2nd grade. Part of our addition worksheets collection.
What You'll Learn
- Add a 1-digit number to a 2-digit number with or without regrouping
- Apply place value to combine ones and tens correctly
- Solve a range of 2-digit plus 1-digit addition problems
FAQ
What is the key place value concept in adding a 1-digit to a 2-digit number?⌄
The ones digits interact while the tens digit may or may not change, depending on whether the ones column sum reaches 10 or more and requires regrouping.
Should 2nd graders use mental math or written algorithms for 2-digit plus 1-digit addition?⌄
Both are appropriate — mental strategies like make-a-ten are often faster for these problems, but written column addition builds the procedural foundation for larger multi-digit work.
What makes a 2-digit plus 1-digit problem 'harder' versus 'easier'?⌄
Problems where the ones digits sum to 10 or more (requiring regrouping) are harder; problems where the ones sum stays below 10 (no regrouping) are easier and should be introduced first.
Ratings & Reviews
3Priya N.
Kindergarten Teacher · Verified download
This is going straight into my lesson plans the second it drops. Please prioritize this one!
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Emily W.
Homeschool parent · Verified download
Excited for this one! I've been hunting for a good printable on this topic for weeks.
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