Free printable practice
2 Digit Plus 1 Digit Practice Activities
Printable addition drills help children add a 1-digit number to a 2-digit number using fact fluency, place value, and regrouping when needed.
Practice that builds confidence
What this addition skill builds
These printable Math > Math Drills > Addition worksheets give children focused practice adding a 1-digit number to a 2-digit number. Learners build fluency with sums such as 24 + 5, 38 + 7, and 60 + 9 while noticing when ones make a new ten.
Activities include clear vertical and horizontal problems, mixed practice pages, and space for children to show thinking. The set is useful after children know basic addition facts and are ready to connect fact fluency, place value, and regrouping in 2-digit addition.
Adding 2-digit plus 1-digit numbers links basic facts to place value. Children learn that in 46 + 3, the 3 joins the ones, not the tens. When the ones total stays under 10, the tens digit remains the same. When the ones total reaches 10 or more, as in 48 + 7, children regroup 10 ones as 1 ten and adjust the total.
Progression in the worksheets
The practice moves from straightforward sums to examples that require closer attention to the ones place. Horizontal problems encourage mental addition and number sense, while vertical problems help children line up digits correctly. Mixed pages keep learners from relying on a pattern, so they must decide whether to count on, use a known fact, or make a ten.
A simple parent routine
Begin with three quick oral problems, such as 32 + 4 or 56 + 8. Ask your child to explain what happens to the ones. Then have them complete a short section of the worksheet, circling any problem where the ones add to 10 or more. End by choosing one problem to model with tens and ones: “7 ones plus 5 ones makes 12 ones, so that is 1 ten and 2 ones.”
Classroom uses
Teachers can use these pages for morning work, addition centers, small-group reteaching, or fluency review after a place value lesson. They also work well as exit tickets: give a mix of problems with and without regrouping and check whether students align digits, apply facts, and record the new ten accurately.
Common errors to watch for
Some children add the 1-digit number to the tens digit, turning 34 + 5 into 84. Others forget to regroup and write only the ones result, such as 27 + 8 = 25. Watch for reversed digits, skipped carries, and over-counting when students count on from 1 instead of from the larger number.
Free printable PDF download
Use this 2 digit plus 1 digit worksheet page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Why iBloom worksheets help
iBloom worksheets keep the focus narrow: one exact addition structure, repeated enough for confidence but varied enough for thinking. A helpful child-friendly strategy is: “Look at the ones, add the ones, make a ten if you need one, then read the whole number.”
Helpful answers
Frequently asked questions
What does 2 digit plus 1 digit addition mean?
It means adding a number from 10 to 99 to a single-digit number, such as 42 + 6 or 75 + 8. Children focus on adding to the ones place and regrouping when the ones make 10 or more.
Should children solve these problems mentally or in writing?
Both are useful. Horizontal problems support mental strategies like counting on or making a ten, while vertical problems help children see place value and line up the ones correctly.
How can I explain regrouping in 2 digit plus 1 digit sums?
Use tens and ones language. For 58 + 6, say, “8 ones plus 6 ones is 14 ones. That is 1 ten and 4 ones, so 58 becomes 64.” Base-ten blocks or quick drawings can make this clearer.
Are these worksheets only for timed drills?
No. They can be used for fluency, but they are also helpful for careful place value practice, small-group instruction, homework review, or checking whether a child understands carrying.
What mistakes show that a child needs more practice?
Common signs include adding the 1-digit number to the tens digit, forgetting to carry after making 10 ones, writing digits in the wrong order, or counting all numbers from 1 instead of counting on from the 2-digit number.
Is this 2 digit plus 1 digit worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this 2 digit plus 1 digit worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this 2 digit plus 1 digit worksheet include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.