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Place Value Mental Addition

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Place Value Mental Addition worksheet preview

Place Value Mental Addition

Aboriginal number patterns illustration

🔢 Part 1: Place Value Renaming

1. Rename the number 34,582 using place value. Circle the correct answer:

30,000 + 4,000 + 500 + 80 + 2

3,000 + 4,000 + 500 + 80 + 2

30,000 + 400 + 50 + 8 + 2

2. Write 25,739 in expanded form:

25,739 = _______ + _______ + _______ + _______ + _______

3. Which number has 6 in the thousands place? Circle all correct answers:

46,821

16,543

62,109

86,475

4. Complete the place value chart for 178,394:

Hundred Thousands: _____ Ten Thousands: _____ Thousands: _____

Hundreds: _____ Tens: _____ Ones: _____

🧠 Part 2: Mental Addition Strategies

5. Solve 47 + 28 using the "getting to 10" strategy. Show your thinking:
6. Which mental strategy would work best for 36 + 37? Circle your choice and explain why:

Doubles strategy

Rounding strategy

Partitioning strategy

I chose this strategy because: _________________________________

7. Use partitioning to solve 65 + 29:

65 + 29 = (60 + ____) + (20 + ____) = ____ + ____ = ____

8. Solve using your favourite mental strategy:

a) 84 + 17 = ____ Strategy used: ________________

b) 56 + 35 = ____ Strategy used: ________________

✍️ Part 3: Explain Your Thinking

9. Explain how renaming the number 42,816 helps you understand its size and value:
10. Describe how partitioning numbers in maths is like breaking down a big task in real life. Give an example:

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