Mental Addition Partitioning Strategies
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Mental Addition Partitioning Strategies
🎯 WALT: Use mental strategies for addition using partitioning
Success Criteria:
☐ I can break a number into parts to make addition easier
☐ I can explain my mental addition strategy
☐ I can check that my answers are reasonable using estimation
📊 Part 1: Mental Addition Using Partitioning
Remember: Break numbers into tens and ones to make addition easier!
47 = ____ + ____
36 = ____ + ____
____ + ____ = ____
____ + ____ = ____
Final answer: ____
Show your partitioning strategy below:
📝 Part 2: Word Problems and Estimation
My partitioning strategy:
Answer: _______ sausages
Estimation check: _____ + _____ ≈ _____
Sentence stem for ESOL students: "I partitioned _____ into _____ and _____. This helped me because..."
🌟 Extension Challenge (Advanced Learners)
247 = _____ + _____ + _____
186 = _____ + _____ + _____
Hundreds: _____ + _____ = _____
Tens: _____ + _____ = _____
Ones: _____ + _____ = _____
Final answer: _____
_____ + _____ = _____
Explain why this problem is good for partitioning:
🔍 Self-Assessment
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