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Addition with Regrouping Blocks

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Addition with Regrouping Blocks

Base-ten blocks showing tens and ones

🎯 WALT (We Are Learning To)

Today we are learning to:

• Use base-ten blocks to solve addition problems with regrouping

• Exchange 10 ones for 1 ten when adding

• Write number sentences showing our regrouping work

Success Criteria - I can:

✓ Group ten ones into a ten block when adding

✓ Solve two-digit addition problems using blocks

✓ Write addition sentences correctly

🔢 Part 1: Block Addition Problems

Use your base-ten blocks to solve these problems. Show your regrouping!

1. 28 + 15 = _______

How many tens did you regroup? _______

2. 39 + 27 = _______

How many ones were left after regrouping? _______

3. 46 + 18 = _______
4. 37 + 25 = _______
5. 29 + 34 = _______

🗣️ Part 2: Explain Your Thinking

6. Look at problem 1 (28 + 15). Explain how you regrouped the ones into tens:
7. Circle the problems above where you needed to regroup:

Problem 1 (28 + 15)

Problem 2 (39 + 27)

Problem 3 (46 + 18)

Problem 4 (37 + 25)

Problem 5 (29 + 34)

8. Extension Challenge: Create your own addition problem that needs regrouping:

_______ + _______ = _______

Explain why your problem needs regrouping:

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