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  • 2nd Grade
  • Math
  • About 10 minutes
  • See it all: a chart to keep

Carry and Regroup Chart

How to carry when you add, and regroup when you subtract.

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Carry and Regroup ChartName:Date:How to carry when you add, and regroup when you subtract.Adding with regroupingcarry47+251721. Add the ones: 7 + 5 = 12.2. 12 is 1 ten and 2 ones. Write the 2. Carry the 1 to the top of the tens.3. Add the tens: 1 + 4 + 2 = 7.4. 47 + 25 = 72.Subtracting with regroupingregroup63−28135351. Can you take 8 ones from 3? No.2. Take 1 ten from the 6 tens. Cross out the 6 and write 5 on top.3. The 3 ones become 13 ones.4. 13 − 8 = 5. Then 5 − 2 = 3. So 63 − 28 = 35.k5printables.com · Sheet #40224601 · Aligned with Common Core 2.NBT.B.5

How to do it

  1. Read the adding example, one step at a time.
  2. Read the subtracting example.
  3. Keep the chart out while you practice.

Teaching tip

Cover the answer and have them talk you through each step. This sheet is aligned with Common Core 2.NBT.B.5.

Carry and Regroup Chart for 2nd grade (adding and subtracting within 100), free printable
Printable preview

About this chart

One worked example of carrying in addition and one of regrouping in subtraction, step by step.

What kids practice

Adding and subtracting two-digit numbers, like 47 + 25 and 63 - 28. The ones are added or subtracted first, then the tens. When the ones add up to 10 or more, 10 of them become 1 ten (carrying). When there aren't enough ones to take away, 1 ten becomes 10 ones (regrouping). Every problem in this topic uses two-digit numbers on both lines.

Watch for

  • Writing 12 in the ones place instead of carrying the 1 ten.
  • Subtracting the smaller digit from the bigger one in the ones (63 - 28 becomes 45).
  • Forgetting to take 1 away from the tens after regrouping.
  • Adding when the sign says subtract on the mixed page.

It's free to print, as many copies as you need. See the full adding and subtracting within 100 guide for 2nd grade.

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