Grade 3/Division
Divide Tens and Hundreds by 1-Digit (859)
Decompose tens and hundreds to divide by a single-digit divisor.
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2009
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Quick Tip
Solve mentally and write the quotient in the blank.
Teacher Resources
Teaching Notes
Chunk hundreds then tens mentally; record intermediate if needed.
Vocabulary
tens: Numbers like 10, 20, 30, etc.
hundreds: Numbers like 100, 200, 300, etc.
Common Mistakes
- Not decomposing hundreds
- Arithmetic slips in tens
- Ignoring place value
- Basic multiplication errors
- Incorrect regrouping
- Dividing parts unevenly
Differentiation
SupportUse base-ten blocks or visual models.
ChallengeSolve with larger dividends or multiple steps.
Discussion Questions
- How does place value help with division?
- When do you need to decompose?
- What is the inverse operation?
- Can you show another strategy?
Extension Activities
- Use base-ten blocks.
- Write related multiplication sentences.
- Practice with larger dividends.
Parent Tip
Ask your child to divide groups of 10s or 100s by a single digit.
Learning Path
Skill Cluster
Number Sense & Operations
Estimated Time
10 minutes
Skills Practiced
decompose tens hundreds
Prerequisites
- Basic Division Facts
- Place Value (Tens/Hundreds)
Next Steps
- Division with Remainders
- Multi-Digit Division
- Divide with Remainders
- Mental Division Strategies
- Divide Multi-Digit by 1-Digit