🔢 Part 1: Step-by-Step Addition with Regrouping

Success Criteria: I can add two-digit numbers by regrouping 10 ones into 1 ten.

💡 Tips for Success:

• Use base ten blocks or draw pictures

• Remember: 10 ones = 1 ten

• Work from right to left (ones first, then tens)

Step 1: Add the ones: 7 + 5 = ____

Step 2: Do you need to regroup?

Yes No

Step 3: Regroup 12 ones as ____ ten and ____ ones

Step 4: Add the tens: 2 + 1 + 1 = ____

Answer: 27 + 15 = ____

Step 1: Add the ones: 8 + 4 = ____

Step 2: Do you need to regroup?

Yes No

Step 3: Regroup 12 ones as ____ ten and ____ ones

Step 4: Add the tens: 3 + 2 + 1 = ____

Answer: 38 + 24 = ____

Use the steps above to solve this problem:

➖ Part 2: Step-by-Step Subtraction with Regrouping

Success Criteria: I can subtract two-digit numbers by regrouping 1 ten into 10 ones.

💡 Tips for Success:

• Look at the ones place first

• If you can't subtract, borrow 1 ten and make it 10 ones

• Remember: 1 ten = 10 ones

Step 1: Can you subtract 8 from 2?

Yes No

Step 2: Borrow 1 ten: 5 tens becomes ____ tens

Step 3: Add 10 ones: 2 + 10 = ____ ones

Step 4: Subtract ones: 12 - 8 = ____

Step 5: Subtract tens: 4 - 2 = ____

Answer: 52 - 28 = ____

Use the steps above to solve this problem:

🎯 Part 3: Visual Support & Practice

Draw tens as long rectangles, ones as small squares

Answer: 29 + 34 = ____

Add the first two numbers, then add the third number to your answer.

Number sentence: ____ + ____ = ____

Answer: Maria has ____ stickers.