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Column Addition Mastery

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Column Addition Mastery worksheet preview

Column Addition Mastery

Column addition illustration

🎯 WALT (We Are Learning To)

Apply the column method to add larger whole numbers systematically and accurately by understanding place value and carrying digits.

✅ Success Criteria - I can:

Organise numbers correctly in columns according to place value

Perform addition using the column method including carrying digits

Explain each step using mathematical language

Check answers for reasonableness using estimation

👥 Part 1: Group Practice Problems

Work with your team. Take turns being the reader, organiser, and calculator.

1. Set up and solve: 2,456 + 1,327
2. Add these numbers: 15,683 + 24,249
3. Calculate: 47,582 + 38,795
4. Solve and check your answer: 63,247 + 29,586

Estimation check: ________ + ________ ≈ ________

✏️ Part 2: Independent Practice

Complete these problems on your own. Remember to line up the place values!

5. 3,674 + 2,189 = ________
6. 28,456 + 17,398 = ________
7. 54,729 + 36,847 = ________
8. Word Problem: A school raised $23,456 in their first fundraiser and $18,789 in their second fundraiser. How much money did they raise altogether?

Answer: The school raised $________ altogether.

🌟 Extension Activities (Advanced Learners)

9. Three-number addition: 12,345 + 23,456 + 34,567
10. Multi-step problem: A library has 34,582 fiction books, 28,749 non-fiction books, and 15,693 children's books. If they buy 4,276 more books, how many books will they have in total?

Step 1: ________ + ________ + ________ = ________

Step 2: ________ + ________ = ________

Final Answer: ________ books

11. Challenge: Explain in your own words why we "carry" digits in column addition.

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