Addition and Subtraction Extension

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Date:

🧮 Part 1: Large Number Operations

1. Calculate these addition problems. Show your working.

a) 4,567 + 2,834 = _______

b) 6,295 + 1,748 = _______

c) 3,456 + 4,789 = _______

2. Calculate these subtraction problems. Show your working.

a) 8,463 - 2,597 = _______

b) 7,000 - 3,846 = _______

c) 9,234 - 5,678 = _______

3. Which calculation is correct?

5,432 + 3,789 = 9,221

5,432 + 3,789 = 9,121

5,432 + 3,789 = 8,221

🏪 Part 2: Real-World Problems

4. A school is fundraising for new playground equipment. They need $8,500. So far they have raised $3,275 from cake sales and $1,840 from a fun run. How much more money do they need to raise?

Answer: $__________

5. The local library has 6,847 books. During the summer holidays, they bought 1,356 new books and removed 892 old damaged books. How many books does the library have now?

Answer: __________ books

6. Challenge Problem: A factory produces 2,450 widgets on Monday, 3,678 widgets on Tuesday, and 1,897 widgets on Wednesday. On Thursday, they had to recall 1,234 faulty widgets. What is the total number of good widgets they have?

Answer: __________ widgets