Subtracting Multiples of Ten
Students subtract multiples of 10 from multiples of 10 and from two-digit numbers.
Key Questions
- Explain how subtracting a multiple of ten only affects the tens digit.
- Predict the result of subtracting 10 or 20 from a given two-digit number.
- Design a mental strategy for subtracting multiples of ten.
Common Core State Standards
Suggested Methodologies
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Planning templates for Mathematics
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
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Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
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Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
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