2-Digit Addition With Regrouping Worksheets

Quick answer: 2-digit addition with regrouping means adding two two-digit numbers where the ones add up to 10 or more, so a ten is carried to the tens place, as in 38 + 27 = 65. This page has 50 free printable worksheets with answer keys, for grade 2. Updated October 2026.

2-digit addition with regrouping worksheets to print (PDF)

These 2-digit addition with regrouping worksheets show what the generator prints: a page of 20 problems that all need regrouping, a large-print page with 12 problems, a horizontal page for mental math and the answer key. Click a picture for the PDF, or use the generator above to make a new set.

About 2-digit addition with regrouping

Every problem on these 2-digit addition with regrouping worksheets has ones that add up to 10 or more, so children must regroup (carry) 10 ones as 1 ten. It is the key skill of grade 2 addition, and it prepares children for adding bigger numbers later. The Common Core standards for grade 2 number and operations in base ten list this skill under adding within 100 (2.NBT.B.5), and Wikipedia’s article on carrying explains the idea behind the method.

How to add with regrouping

Take 47 + 38:

1. Add the ones: 7 + 8 = 15.
2. 15 ones is 1 ten and 5 ones. Write 5 in the ones column and carry the 1 to the tens column.
3. Add the tens, including the carried 1: 4 + 3 + 1 = 8.
4. The answer is 85.

2 digit addition with regrouping worksheets: four ways to add 47 + 38

There is more than one way to solve a problem with regrouping, and children who know two or three methods can check their own answers. These four methods all give the same answer, and the 2-digit addition with regrouping worksheets work with each of them. The first example is 47 + 38:

The second example, 69 + 26, shows the same methods with a ones sum of 15 again and a different make-ten step:

The standard algorithm is the one that children need for bigger numbers, so the 2-digit addition with regrouping worksheets use it as the main method. The number line and the make-a-ten method are good for mental math and for estimating whether an answer is sensible.

Double digit addition with regrouping: how many problems need it?

If you choose “Every problem needs it” in the generator, you get problems where at least one column adds up to 10 or more. Counted from all 8,100 pairs of 2-digit numbers, this is how they divide, using the generator’s own rule:

So 75.6% of all double digit addition with regrouping problems carry at least once, and 29.4% carry twice, once from the ones to the tens and once from the tens to the hundreds. In 4,860 of the 6,120 problems that regroup, the answer has three digits, because the tens carry into the hundreds. That is a step that many children find hard, so a good set of 2-digit addition with regrouping worksheets includes both kinds.

Addition with carrying worksheets: the make-ten facts

Every carry starts with a ones column that adds up to 10 or more. These are the ones-digit pairs that cause it, with the number of ordered pairs for each sum. Children who know that 8 + 5 is 13 without counting find addition with carrying worksheets much easier:

There are 45 ordered pairs of digits that add up to 10 or more, which is 45% of the 100 possible pairs. Practice the facts for sums of 11 to 14 first, since they appear most often, and use the ten frame to show how 8 + 5 makes a ten and three more.

Two digit addition with carrying: 24 practice problems with answers

Here is a short set of two digit addition with carrying problems, made by the generator’s rule that at least one column carries. The table shows the working for each one, so a teacher can check a child’s answer in seconds, or a child can cover the last column and solve the problem first:

For a fresh set of 2-digit addition with regrouping problems with different numbers, set the generator to “Every problem needs it” and press the button to change the numbers, or print a set of up to five versions with an answer key for each.

2-digit addition with regrouping word problems

Word problems show why regrouping matters. These six stories use the same numbers as the practice problems and need one regrouping step each. Ask children to write the number sentence first and to say what the answer counts:

Common mistakes in 2-digit addition with regrouping

These are the errors that teachers see most often. The table shows what the wrong answers look like for five problems, so a teacher can tell what a child has misunderstood:

If a child writes 715 for 47 + 38, the mistake is with place value: the whole ones sum went into the ones column. If the child writes 75, the carry was forgotten. Both mistakes are easy to fix with base-ten blocks or with the carry written above the tens column.

2-digit addition with regrouping with base-ten blocks

Blocks make regrouping visible, because the child can trade ten ones for one ten with their hands. In the 2-digit addition with regrouping worksheets, each problem can be drawn with tens sticks and ones dots. This table shows what happens to the blocks in six problems:

The trade is the whole idea of regrouping: 15 ones are the same as 1 ten and 5 ones. Children who can draw the trade usually have no trouble with the written method.

Estimate first: a check for 2-digit addition with regrouping

Before children add, ask them to round each number to the nearest ten and add the rounded numbers. The estimate shows roughly what the answer should be, and it catches the “forgot to carry” mistake at once, since 75 is far from the estimate of 90. For the six problems above, the estimates are:

The estimate is never more than 10 away from the exact answer, because each number is rounded by at most 5. See the rounding worksheets for practice with this skill.

Mental math for 2-digit addition with regrouping: the nearly-ten trick

When one number is just below a multiple of ten, such as 39 or 58, children can round it up, add, and take the extra back. The method turns many 2-digit addition with regrouping problems into easy ones:

How big are the answers in 2-digit addition with regrouping?

The answers to 2-digit addition with regrouping problems can be small or large. Out of the 6,120 problems that regroup, the sizes of the answers are:

79% of the answers have three digits, so children must be ready for a result that is bigger than 99. A page that has only answers below 100 does not prepare them for this.

A dice game for 2-digit addition with regrouping

A simple game turns the worksheets into a lesson. Each child rolls four dice and builds two 2-digit numbers, for example 4 and 6 and then 3 and 5 for 46 + 35. They add the numbers and score one point if they have to regroup. With normal dice, the chances are:

Because most rolls need regrouping, the game gives many chances to practice 2-digit addition with regrouping, and the child who gets the biggest total in each round wins a bonus point.

Using the generator settings for 2-digit addition with regrouping

The generator has several settings that suit different children. This table shows what each one prints, and who it is best for:

• Writing 15 in the ones column: only one digit fits in each column; the ten is carried.
• Forgetting the carried 1: encourage children to write it small above the tens.
• Adding the carry before adding the tens digits: either order works, but pick one and stick to it.

A five-day plan for 2-digit addition with regrouping

Most grade 2 children need about a week of short sessions to feel secure. This plan moves from the make-ten facts to word problems, and it works with the 2-digit addition with regrouping worksheets above:

When children are secure, move on to 3-digit addition, and for children who need a step back there is 2-digit addition without regrouping. All the pages are part of the addition worksheets section.

2 digit addition: how often is regrouping needed?

If you pick two random two-digit numbers, how often must you regroup? We checked all 8,100 problems from 10 + 10 to 99 + 99:

Regrouping the ones is needed in 45% of problems, a carry into the hundreds happens in 60%, and only about a quarter (24%) need no regrouping at all, so a page of plain 2 digit addition problems has fewer easy questions than parents expect. A worksheet with no regrouping is the right first step, and then you can move up to this page.

Adding 2 digit numbers worksheets: free PDFs and practice

Parents search for the same pages as adding 2 digit numbers worksheets, an adding 2 digit numbers worksheet, 2 digit by 2 digit addition worksheets, 2 digit addition math worksheets, math 2 digit addition worksheets and math worksheets 2 digit addition. Free 2 digit addition worksheets are all here, with the answer key on the last page. For two-digit addition without carrying, use the 2-digit addition without regrouping page first. If you also need the opposite skill, try 2-digit subtraction with regrouping.