Grade 3/Addition
Error Analysis: Addition Mistakes (776)
Detect and fix addition errors (regrouping & alignment).
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Teacher Resources
Teaching Notes
Require marking column of error.
Common Mistakes
- Only giving correct total
- Incorrect regrouping
- Misaligned place values
- Basic fact errors
- Forgetting to add regrouped number
Differentiation
SupportUse place value charts or manipulatives.
ChallengeCreate problems with multiple errors to find.
Discussion Questions
- Why is place value important in addition?
- How can we check our addition work?
- What happens if you forget to regroup?
- Why do these mistakes happen?
Learning Path
Skill Cluster
Number Sense & Operations
Estimated Time
15 minutes
Skills Practiced
detect addition errorcarry consistency
Prerequisites
- 761
- 762
- Basic Addition Facts
- Place Value
- Addition with Regrouping
Next Steps
- Subtraction Error Analysis
- Multi-Digit Addition Fluency
- Error Analysis: Subtraction Mistakes
- Multi-Digit Addition Practice
- Place Value Review