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Classroom · Math · 2nd grade
Two-digit addition with regrouping worksheets
A free five-page pack: the method with a worked example, problems in a tens and ones grid, columns with a check, across and missing numbers, a spot-the-mistake puzzle, word problems and an answer key.
Watch it solved
54 sec · with voice and captionsA pencil works one example of each activity, so you can see how the worksheet goes before you print it. Tap a step to jump to it. The rest of the sheet is left for your child to finish.
Read what the video says
- 0:00 Let's practice two-digit addition with regrouping, step by step.
- 0:04 Line up the tens and the ones, and always start with the ones. If the ones make ten or more, carry the ten.
- 0:12 47 plus 45. 7 plus 5 is 12. Write 2, and carry the ten. Then add the tens. The answer is 92.
- 0:22 Solve in columns, ones first. 48 plus 44 is 92.
- 0:28 Spot the mistake. Ali says 18 plus 17 is 25. No! The right answer is 35.
- 0:36 Ali has 37 toy cars. Ali gets 53 more. How many toy cars does Ali have now? 37 plus 53 is 90.
- 0:47 Great job! Now print the free worksheet, and finish the rest on your own.
How to do it
How to do itAdd the ones: 7 + 5 = 12. That is 1 ten and 2 ones, so write 2 and carry the 1 ten. Then add the tens: 1 + 4 + 2 = 7. So 47 + 25 = 72.
Teaching tip
Teaching tipRegrouping means 10 ones become 1 ten. Bundling 10 straws or sticks with a rubber band shows it clearly.
Try some
19 + 69 = ?88
54 + 38 = ?92
17 + 43 = ?60
37 + 43 = ?80
16 + 57 = ?73
68 + 14 = ?82
39 + 12 = ?51
28 + 67 = ?95
Tap a problem to see the answer.
Word problems
Ali has 37 toy cars. Ali gets 53 more. How many toy cars does Ali have now?Show answer
37 + 53 = 90
There are 48 bees in the garden. Then 43 more come. How many bees are there now?Show answer
48 + 43 = 91
Omar has 59 crayons. Zara has 37 crayons. How many crayons do they have in all?Show answer
59 + 37 = 96
There are 45 birds in the park. Then 36 more come. How many birds are there now?Show answer
45 + 36 = 81
What the worksheets look like
Common questions
How do you teach two-digit addition with regrouping?
Add the ones: 7 + 5 = 12. That is 1 ten and 2 ones, so write 2 and carry the 1 ten. Then add the tens: 1 + 4 + 2 = 7. So 47 + 25 = 72. Regrouping means 10 ones become 1 ten. Bundling 10 straws or sticks with a rubber band shows it clearly.
What grade is two-digit addition with regrouping?
Usually 2nd grade. In the Common Core it is part of 2.NBT.B.5, 2.NBT.B.9.
Is there an answer key?
Yes. Page 5 has every answer from the pack and a short teaching tip. The worksheet maker also adds an answer key to every sheet it makes.
With or without regrouping first?
Without. Children first learn to line up tens and ones and work ones first. Regrouping (carrying or borrowing a ten) comes next, usually in 2nd grade.
