Subtracting 3-Digit Numbers (With Exchange)
Students learn and apply the column subtraction method with regrouping across tens and hundreds.
Key Questions
- Explain what 'exchanging' means in the context of subtraction.
- Analyze how to decide when an exchange is necessary in a subtraction problem.
- Compare the process of exchanging in addition versus subtraction.
National Curriculum Attainment Targets
Suggested Methodologies
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5E Model
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