Adding and Subtracting Big Numbers
3rd GradeMath35 min
Learning Objective
I can add and subtract four-digit numbers.
Lesson Flow
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Subtraction "Across the Zeros" 4th Grade Math Lightboard
901 Math
Guided Notes
Key concepts students will learn:
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When subtracting across zeros, if you go across a zero, it becomes a 9.
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When subtracting across zeros, if you stop at a zero, it becomes a 10.
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When regrouping, always borrow before you spend it.
Practice
4 questions • Multiple choice & Short answer
Exit Ticket
“Solve the subtraction problem: 5004 - 2638. Show your work, including any borrowing.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
