Browse

Subtraction With Regrouping Worksheets

16 free PDFsUS Letter or A4Answer key includedNo login

2-digit subtraction with regrouping in columns, subtracting from tens and from 100, tens-then-ones and number line strategies, checking with addition, and find the mistake.

Download the subtraction with regrouping worksheets

2-digit subtraction with regrouping

Subtract in columns with room to regroup, decide when to regroup, subtract from tens and from 100, and mixed practice in rows.

Subtract with place value strategies

Take away the tens and then the ones, jump back on an open number line, and check each answer with addition.

Find the mistake

Each problem is already worked. Is it right or wrong? Most wrong answers took the smaller digit from the bigger one.

Print at 100% (actual size) for the cleanest tracing lines.

About these subtraction with regrouping worksheets

Subtraction with regrouping (some say borrowing) is usually the hardest new skill of 2nd grade. When there are not enough ones to take away, the child trades 1 ten for 10 ones. These worksheets build that step with room to cross out and rewrite the digits, then mix in problems that do not need it.

Strategy pages show the same subtraction a second way: take away the tens and then the ones, jump back on an open number line, or check the answer with addition. Find the Mistake pages show the most common slip, taking the smaller digit from the bigger one, so children learn to spot it.

Most pages come as Sheet A, B and C. Every page has an answer key on page 2, and the column keys show the regrouping: the crossed-out digits and the new ones written above. Pages print in black and white on US Letter or A4.

Standards

  • CCSS.MATH.CONTENT.2.NBT.B.5Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
  • CCSS.MATH.CONTENT.2.NBT.B.9Explain why addition and subtraction strategies work, using place value and the properties of operations.
  • CCSS.MATH.CONTENT.2.MD.B.6Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.

How to use them

  1. Model with base-ten blocks first: for 52 − 27, there are only 2 ones, so trade a ten for 10 ones. Now there are 4 tens and 12 ones.
  2. Use 2-Digit Subtraction With Regrouping next. Children cross out the tens digit, write one less above it, and write the new ones above the ones.
  3. Give Regroup or Not? once children are steady, so they look at the ones before they regroup.
  4. Use Subtract From Tens and From 100 to practice regrouping when there are no ones at all.
  5. Use the check-with-addition pages often. Adding the answer back is the habit that catches most mistakes.

Teaching tips

  • Ask: can I take 7 ones from 2 ones? If not, regroup. Never flip the numbers to 7 − 2.
  • Cross out neatly and write the new digits small above, so the work can be checked.
  • After regrouping, the top number is still the same amount: 4 tens and 12 ones is still 52.
  • Counting up works well for problems like 62 − 58: from 58 it is 2 to 60 and 2 more to 62, so 4.
  • Check with addition: 35 + 17 should give back 52.

Questions teachers and parents ask

What is subtraction with regrouping?

When the top digit in a column is smaller than the bottom digit, you trade 1 ten for 10 ones (or 1 hundred for 10 tens). For 52 − 27, 2 ones is not enough, so 52 becomes 4 tens and 12 ones, and 12 − 7 = 5, 4 − 2 = 2, so the answer is 25.

Is regrouping the same as borrowing?

Yes. Borrowing is an older name for the same step. Regrouping is clearer, because nothing is paid back: the ten is just broken into ones.

What is the most common subtraction mistake?

Taking the smaller digit from the bigger one, so 52 − 27 comes out as 35. The Find the Mistake pages show this slip on purpose so children learn to catch it.

Are there answer keys?

Yes. Every page has an answer key on page 2. The column keys show the crossed-out digits and the regrouped digits written above them.