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Double Digit Addition Worksheets

Double digit addition worksheets help 2nd grade students add two-digit numbers with and without regrouping. Brighterly’s printable activities give children practice aligning tens and ones, solving column addition problems, carrying a ten when needed, and applying addition in word problems.

Students can begin with problems that do not require regrouping before progressing to sums where the ones digits total 10 or more.

Double Digit Math Addition Worksheets: Examples

Brighterly’s worksheets include straightforward two-digit calculations as well as problems that require regrouping.

For example, 32 + 15 does not require regrouping:

2 + 5 = 7
3 tens + 1 ten = 4 tens

So:

32 + 15 = 47

But 27 + 36 requires regrouping because 7 + 6 = 13.

Double Digit Addition Worksheet [Download for Free]

Download Brighterly’s free double digit addition worksheets for 2nd grade. The printable PDFs include addition with and without regrouping, column calculations, and word problems, with answers for checking completed work.

For a wider set of grade-level practice, students can also use addition worksheets for 2nd graders.

For students who need extra support connecting place value with column addition, a 2nd grade math tutor can provide targeted practice with two-digit calculations.

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How to Add Double Digit Numbers

When adding two-digit numbers, students line up the digits by place value so that ones are under ones and tens are under tens.

Double Digit Addition Without Regrouping

Consider:

32 + 15

First add the ones:

2 + 5 = 7

Then add the tens:

3 + 1 = 4

The answer is:

32 + 15 = 47

No regrouping is needed because the ones add to less than 10.

Students who need more problems of this type can use addition without regrouping worksheets.

Double Digit Addition With Regrouping

Now consider:

27 + 36

Add the ones first:

7 + 6 = 13

Write 3 in the ones place and regroup the remaining 10 ones as 1 ten.

Then add the tens:

1 + 2 + 3 = 6

So:

27 + 36 = 63

For more focused practice with this method, use 2 digit addition with regrouping worksheets.

Why Place Value Matters in Two-Digit Addition

Two-digit addition depends on correctly separating tens and ones. In the number 42, for example, the 4 represents 4 tens, or 40, while the 2 represents 2 ones.

When students write numbers in columns, matching place values prevents them from accidentally adding a tens digit to an ones digit.

This understanding becomes especially important when regrouping is required, because 10 ones are exchanged for 1 ten.

Skills Students Practice With Double Digit Addition Worksheets

• Add two-digit numbers without regrouping. Students first build accuracy with problems where each place-value column can be added independently.
• Add two-digit numbers with regrouping. Students practice recognizing when the ones total 10 or more and carrying the extra ten into the tens column.
• Align tens and ones. Column practice reinforces the importance of writing corresponding place values directly beneath one another.
• Use addition in word problems. Word problems require students to identify when two quantities should be combined before performing the two-digit calculation.
• Check addition accuracy. Answer pages help students review their calculations and determine whether an error came from basic addition, place-value alignment, or regrouping.

Double Digit Addition With and Without Regrouping

This worksheet collection includes both types of two-digit addition so students can practice deciding whether regrouping is necessary.

For example:

• 34 + 25 = 59 — no regrouping needed.
• 38 + 27 = 65 — regrouping needed because 8 + 7 = 15.

Keeping both types together prepares students for mixed addition practice instead of relying on a worksheet heading to tell them which method to use.

What Comes After Double Digit Addition?

Once students can add two-digit numbers accurately, they can progress to larger place values. Brighterly’s 3 digit addition worksheets extend the same column-addition principles to hundreds.

Students who are also beginning subtraction with regrouping can use addition and subtraction with regrouping worksheets for mixed-operation practice.

Other worksheets

• 2 digit addition with regrouping worksheets
• Addition without regrouping worksheets
• Addition and subtraction with regrouping worksheets
• 3 digit addition worksheets
• Addition worksheets for 2nd graders

Frequently Asked Questions

How Do You Add Double Digit Numbers?

Line up the numbers by place value, add the ones first, and then add the tens. If the ones total 10 or more, regroup 10 ones as 1 ten and add that extra ten to the tens column.

What Grade Do Students Learn Double Digit Addition?

Students commonly practice two-digit addition in 2nd grade. They begin with problems that do not require regrouping and then learn to regroup when the ones column totals 10 or more.

Do These Double Digit Addition Worksheets Include Answers?

Yes. Brighterly’s double digit addition worksheets include answers so students, parents, and teachers can check completed problems and review mistakes with place value or regrouping.