Grade 6/Multiplication
Near Multiples: Advanced Adjustments
Extend near-multiple strategies (±1, ±2) around 50, 100, 25×4 patterns.
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Teaching Notes
Teaches efficient mental multiplication using friendly multiples. Reinforces the distributive property for multi-digit calculations.
Vocabulary
Near Multiples: Numbers close to the original, easier to multiply.
Adjustment: Adding or subtracting to correct an estimate.
Common Mistakes
- Wrong direction of adjustment
- Incorrectly applying adjustment (+/-).
- Forgetting to multiply the adjustment term.
- Errors in mental subtraction/addition.
- Not identifying the closest friendly multiple.
Differentiation
SupportUse visual models; begin with simpler ±1 adjustments.
ChallengeExtend to larger numbers; apply to decimals or fractions.
Discussion Questions
- How does this strategy relate to the distributive property?
- When is it most effective to use a near multiple?
- What makes a number a 'friendly' multiple?
- Can we use this strategy for division too?
Extension Activities
- Use friendly numbers.
- Show the adjustment.
- Try other near multiples.
Parent Tip
Help your child estimate grocery costs by rounding prices up or down.
Learning Path
Skill Cluster
Number Sense & Operations
Estimated Time
12 minutes
Skills Practiced
near multiple adjustmentpattern exploitation
Prerequisites
- 828
- Distributive Property
- Basic Multiplication Facts
- Multiplying by Multiples of 10 and 100
Next Steps
- Multiplying Multi-Digit Numbers
- Mental Math with Decimals
- Distributive Property: Multiplication
- Mental Math: Multiply by Tens and Hundreds
- Two-Digit Multiplication Strategies