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

Three-Digit Regrouping Chart

Carry and regroup with hundreds, tens and ones.

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Three-Digit Regrouping ChartName:Date:Carry and regroup with hundreds, tens and ones.Adding with regroupingcarry368+257116251. Ones: 8 + 7 = 15. Write 5, carry 1.2. Tens: 1 + 6 + 5 = 12. Write 2, carry 1.3. Hundreds: 1 + 3 + 2 = 6.4. 368 + 257 = 625.Subtracting with regroupingregroup403−16813932351. Ones: 3 − 8? Not enough.2. No tens to take, so take 1 hundred: 4 becomes 3, 0 tens become 10 tens.3. Take 1 ten: 10 becomes 9, and 3 ones become 13.4. 13 − 8 = 5, 9 − 6 = 3, 3 − 1 = 2.5. So 403 − 168 = 235.k5printables.com · Sheet #41724601 · Aligned with Common Core 2.NBT.B.7

How to do it

  1. Read the adding example, column by column.
  2. Read the subtracting example with the 0 in the middle.
  3. Keep the chart out while you practice.

Teaching tip

Have your child explain each red mark in their own words. This sheet is aligned with Common Core 2.NBT.B.7.

Three-Digit Regrouping Chart for 2nd grade (adding and subtracting within 1,000), free printable
Printable preview

About this chart

Worked examples of carrying twice in addition, and regrouping across a 0 in subtraction.

What kids practice

The same column-by-column method as two-digit problems, now with hundreds. Kids add or subtract the ones, then the tens, then the hundreds. Carrying and regrouping can happen in more than one column, and subtracting from a number with a 0, like 403 - 168, means regrouping a hundred into tens first.

Watch for

  • Forgetting a carried 1 when there are two carries in one problem.
  • In 403 - 168, trying to borrow from the 0 tens instead of going to the hundreds.
  • Lining up the numbers wrong when one has fewer digits.

It's free to print, as many copies as you need. See the full adding and subtracting within 1,000 guide for 2nd grade.

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