Grade 3/Order of Operations
Order of Operations: Four Operations, Five Numbers
Equations with 5 numbers involving all 4 operations. Students practice integrating division with other operations and parentheses.
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Teacher Resources
Teaching Notes
Watch out for students who add before dividing just because it appears first on the left.
Vocabulary
PEMDAS: Acronym for order of operations.
Expression: A math phrase with numbers and symbols.
Common Mistakes
- Ignoring the hierarchy of Mult/Div over Add/Sub.
- Incorrect operation order
- Ignoring left-to-right rule
- Parentheses errors
- Basic computation errors
Differentiation
SupportWrite M/D and A/S on the board as reminders.
ChallengeFind the answer if the parentheses were removed.
Discussion Questions
- Why is the order of operations important?
- What happens if you ignore parentheses?
- Give a real-world example of using PEMDAS.
- How can you check your solution for accuracy?
Extension Activities
- Add exponents.
- Use larger numbers.
- Create longer expressions.
Parent Tip
Ask your child to create a problem using all four operations.
Learning Path
Skill Cluster
Algebraic Thinking
Estimated Time
25 minutes
Skills Practiced
mixed operations 5 terms
Prerequisites
- 896
- Basic operations with whole numbers
- Understanding of parentheses
Next Steps
- Expressions with exponents
- Algebraic expressions
- Order of operations with decimals/fractions
- Order of Operations: Exponents
- Order of Operations: Decimals and Fractions