Grade 2/Addition
Missing Addends with Whole Hundreds (758)
Missing addend when the step is a whole hundred.
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Teacher Resources
Teaching Notes
Relate to vertical subtraction as verification.
Common Mistakes
- Incorrect operation applied
- Place value errors
- Not checking answer
- Forgetting inverse relationship
Differentiation
SupportUse number lines or manipulatives.
ChallengeSolve with missing subtrahend/minuend.
Discussion Questions
- How does knowing 4+3=7 help with 400+300=700?
- What strategy helps find missing addends?
- How can you check your answer?
- When might you use this skill in daily life?
Learning Path
Skill Cluster
Number Sense & Operations
Estimated Time
9 minutes
Skills Practiced
missing addend hundreds
Prerequisites
- add_whole_hundreds
- Adding and Subtracting Whole Tens
- Basic Addition and Subtraction Facts
Next Steps
- Adding and Subtracting Multiples of 100
- Missing Addend (Mixed Hundreds)
- Missing Addend (Whole Tens)
- Adding and Subtracting Whole Hundreds
- Inverse Operations with Whole Numbers