🎓 Grade 2📄 Free PDF✅ Answer Keys🎯 4 Classroom Sets

2-Digit Subtraction with Regrouping · Free Worksheets (Grade 2)

Q: How do you solve a 2-digit subtraction with regrouping problem step by step?

Here is a worked example: "Calculate vertically: 63 − 28". Solution: 1. Ones column: 3 < 8, so borrow 1 ten from 6 tens. 2. 6 tens becomes 5 tens; 3 ones becomes 13 ones. 3. Subtract ones: 13 − 8 = 5. 4. Subtract tens: 5 − 2 = 3. 5. Difference: 35. (Check: 35 + 28 = 63 ✅)

Q: What is the core learning objective for 2-digit subtraction with regrouping?

Fluently subtract two two-digit numbers within 100 with regrouping (borrowing from tens to ones), using place-value decomposition and column subtraction strategies. This directly aligns with Common Core Standard CCSS.MATH.CONTENT.2.NBT.B.5.

Q: What is the most common mistake students make with 2-digit subtraction with regrouping?

A frequent pitfall is: "Subtracting smaller from larger digit (Reverse Subtraction)". Why students stumble: When seeing 52 − 27, computing 7 − 2 = 5 instead of regrouping 12 − 7 = 5. How to fix it: Always remind students: 'More on the floor? Go next door and get 10 more!'

Q: What is included in the 4 differentiated worksheet sets?

Set A covers standard core practice (Vertical column subtraction within 100 where every problem requires borrowing from the tens place.). Set B is an Anti-Cheat version with alternate numbers to prevent copying. Set C features challenging problems, and Set D is a timed sprint.

Q: Are these 2-digit subtraction with regrouping worksheets free to print with answer keys?

Yes! Every single worksheet on PanMaths is 100% free with no sign-up needed. Each sheet includes a dedicated Answer Key on Page 2 with step-by-step intermediate evaluation lines for 1-minute grading.

Practice 2-digit subtraction with regrouping (Grade 2) with free printable PDF worksheets. 4 pre-packaged classroom sets with 100% verified step-by-step answer keys, plus an unlimited live customizer for teachers and homeschoolers.

📐Aligned to Common Core (CCSS.MATH.CONTENT.2.NBT.B.5)·5-10 min per sheet

Include Key in PrintShow Worked Steps

Count:

PanMaths.com2-Digit Subtraction with Regrouping Worksheets • Set A (Standard)

Name: __________________________

Date: _____________ Period: ____

Score: _____ / 10

−29

−19

−46

−12

−26

−22

−76

−17

−43

−17

PanMaths.com • Free Printable Math WorksheetsPage 1 of 2

PanMaths.comAnswer Key & Worked Solutions • Set A (Standard)

Answer Key

Total Problems: 10

−29

1. Regroup Tens: 4 Tens → 3 Tens left (Ones: 3 + 10 = 13)

2. Subtract Ones: 13 − 9 = 4

3. Subtract Tens: 3 − 2 = 1

−19

1. Regroup Tens: 7 Tens → 6 Tens left (Ones: 1 + 10 = 11)

2. Subtract Ones: 11 − 9 = 2

3. Subtract Tens: 6 − 1 = 5

−46

1. Regroup Tens: 9 Tens → 8 Tens left (Ones: 5 + 10 = 15)

2. Subtract Ones: 15 − 6 = 9

3. Subtract Tens: 8 − 4 = 4

−12

1. Regroup Tens: 4 Tens → 3 Tens left (Ones: 1 + 10 = 11)

2. Subtract Ones: 11 − 2 = 9

3. Subtract Tens: 3 − 1 = 2

−26

1. Regroup Tens: 3 Tens → 2 Tens left (Ones: 1 + 10 = 11)

2. Subtract Ones: 11 − 6 = 5

3. Subtract Tens: 2 − 2 = 0

−22

1. Regroup Tens: 4 Tens → 3 Tens left (Ones: 0 + 10 = 10)

2. Subtract Ones: 10 − 2 = 8

3. Subtract Tens: 3 − 2 = 1

−76

1. Regroup Tens: 8 Tens → 7 Tens left (Ones: 0 + 10 = 10)

2. Subtract Ones: 10 − 6 = 4

3. Subtract Tens: 7 − 7 = 0

−17

1. Regroup Tens: 3 Tens → 2 Tens left (Ones: 4 + 10 = 14)

2. Subtract Ones: 14 − 7 = 7

3. Subtract Tens: 2 − 1 = 1

−43

1. Regroup Tens: 7 Tens → 6 Tens left (Ones: 2 + 10 = 12)

2. Subtract Ones: 12 − 3 = 9

3. Subtract Tens: 6 − 4 = 2

−17

1. Regroup Tens: 2 Tens → 1 Tens left (Ones: 2 + 10 = 12)

2. Subtract Ones: 12 − 7 = 5

3. Subtract Tens: 1 − 1 = 0

PanMaths.com • Answer Key & SolutionsPage 2 of 2

✨

Need a Multi-Topic Review Test or Custom Problem Mix?Combine 2-Digit Subtraction with Regrouping Worksheets with other math skills into a custom 15-to-25 question test with 1-click dual-set anti-cheat PDFs & answer keys.

Build Custom Worksheet ➔

Worksheet Info

Categorygrade-2

Grade LevelGrade 2

DifficultyEasy, Medium, Hard, Sprint

Time5-10 min

CCSS CodeCCSS.MATH.CONTENT.2.NBT.B.5

Skills Practiced

✓ 2-Digit Subtraction with Regrouping

Key Strategies

1️⃣ Inspect Ones: Is Regrouping Needed?: Check the ones place first. If the top digit is smaller than the bottom digit (e.g. in 52 − 27, 2 < 7), you cannot subtract without regrouping.
2️⃣ Regroup 1 Ten into 10 Ones: Borrow 1 ten from the tens column: 5 tens becomes 4 tens. Add 10 to the ones column: 2 ones becomes 12 ones.
3️⃣ Subtract Ones and Tens Columns: Subtract the ones: 12 − 7 = 5. Next subtract the remaining tens: 4 − 2 = 2. Total Difference = 25.
4️⃣ Verify with Inverse Addition: Check your work: Add the difference to the subtrahend (25 + 27 = 52 ✅).

🎮 Interactive Warm-Up

Subtraction Mastery

Warm up with 60 seconds of rapid mental math practice before printing!

Play Speed Game Free →

Related Worksheets

📄 Base-10 Blocks to 1,000View →📄 Expanded Form 3-Digit NumbersView →📄 Comparing 3-Digit NumbersView →📄 Skip Counting by 3s and 4sView →

📜 Standard: CCSS.MATH.CONTENT.2.NBT.B.5🔗 CCSS.MATH.CONTENT.2.NBT.B.7🔗 CCSS.MATH.CONTENT.2.NBT.B.9

Mastering 2-Digit Subtraction with Regrouping: Core Concepts & Mental Models

Two-digit subtraction with regrouping (borrowing) introduces the fundamental concept of place-value decomposition. When the top ones digit is smaller than the bottom ones digit, students must borrow 1 ten (10 ones) from the tens column, transforming the subtraction into an accessible basic fact.

Worked Example & SolutionTeacher Step-by-Step Method

📝 Problem: Calculate vertically: 63 − 28

Worked Solution: 1. Ones column: 3 < 8, so borrow 1 ten from 6 tens. 2. 6 tens becomes 5 tens; 3 ones becomes 13 ones. 3. Subtract ones: 13 − 8 = 5. 4. Subtract tens: 5 − 2 = 3. 5. Difference: 35. (Check: 35 + 28 = 63 ✅)

💡 Essential Strategies for 2-Digit Subtraction with Regrouping

1️⃣ Inspect Ones: Is Regrouping Needed?

Check the ones place first. If the top digit is smaller than the bottom digit (e.g. in 52 − 27, 2 < 7), you cannot subtract without regrouping.

2️⃣ Regroup 1 Ten into 10 Ones

Borrow 1 ten from the tens column: 5 tens becomes 4 tens. Add 10 to the ones column: 2 ones becomes 12 ones.

3️⃣ Subtract Ones and Tens Columns

Subtract the ones: 12 − 7 = 5. Next subtract the remaining tens: 4 − 2 = 2. Total Difference = 25.

4️⃣ Verify with Inverse Addition

Check your work: Add the difference to the subtrahend (25 + 27 = 52 ✅).

⚠️ Common Mistakes & Teacher Fixes

⚠️Subtracting smaller from larger digit (Reverse Subtraction)

Why students stumble: When seeing 52 − 27, computing 7 − 2 = 5 instead of regrouping 12 − 7 = 5.

Teacher Fix: Always remind students: 'More on the floor? Go next door and get 10 more!'

⚠️Forgetting to decrement the tens digit

Why students stumble: Borrowing 10 ones into the ones place but leaving the tens digit unchanged (e.g. writing 5 − 2 = 3 instead of 4 − 2 = 2).

Teacher Fix: Immediately cross out the tens digit and write the new decremented number above it before subtracting.

📖 Key Mathematical Vocabulary

Regrouping / Borrowing

The process of unbundling 1 ten into 10 ones so that subtraction can proceed in the ones place.

Minuend

The top number from which another number is subtracted (e.g., 52 in 52 − 27).

Subtrahend

The number being subtracted (e.g., 27 in 52 − 27).

Difference

The result of the subtraction problem (25).

🎯 4 Differentiated Classroom Sets Included

Set AVersion A

Set A: Core Subtraction with Borrowing (10 Problems)

Vertical column subtraction within 100 where every problem requires borrowing from the tens place.

Set BVersion B

Set B: Alternate & Anti-Cheat (10 Problems)

Parallel difficulty with freshly randomized operands guaranteeing borrowing for classroom testing.

Set CVersion C

Set C: Advanced & Tens with Zero (8 Problems)

Challenging problems featuring minuends ending in zero (e.g. 50 − 24, 80 − 37) and larger two-digit differences.

Set DVersion D

Set D: 3-Minute Regrouping Sprint (15 Problems)

15 rapid column subtraction problems with regrouping to build speed, confidence, and accuracy.

❓ Frequently Asked Questions

How do you solve a 2-digit subtraction with regrouping problem step by step?

Here is a worked example: "Calculate vertically: 63 − 28". Solution: 1. Ones column: 3 < 8, so borrow 1 ten from 6 tens. 2. 6 tens becomes 5 tens; 3 ones becomes 13 ones. 3. Subtract ones: 13 − 8 = 5. 4. Subtract tens: 5 − 2 = 3. 5. Difference: 35. (Check: 35 + 28 = 63 ✅)

What is the core learning objective for 2-digit subtraction with regrouping?

Fluently subtract two two-digit numbers within 100 with regrouping (borrowing from tens to ones), using place-value decomposition and column subtraction strategies. This directly aligns with Common Core Standard CCSS.MATH.CONTENT.2.NBT.B.5.

What is the most common mistake students make with 2-digit subtraction with regrouping?

A frequent pitfall is: "Subtracting smaller from larger digit (Reverse Subtraction)". Why students stumble: When seeing 52 − 27, computing 7 − 2 = 5 instead of regrouping 12 − 7 = 5. How to fix it: Always remind students: 'More on the floor? Go next door and get 10 more!'

What is included in the 4 differentiated worksheet sets?

Set A covers standard core practice (Vertical column subtraction within 100 where every problem requires borrowing from the tens place.). Set B is an Anti-Cheat version with alternate numbers to prevent copying. Set C features challenging problems, and Set D is a timed sprint.

Are these 2-digit subtraction with regrouping worksheets free to print with answer keys?

Yes! Every single worksheet on PanMaths is 100% free with no sign-up needed. Each sheet includes a dedicated Answer Key on Page 2 with step-by-step intermediate evaluation lines for 1-minute grading.