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Order of Operations (PEMDAS)
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Order of Operations (PEMDAS)

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Questions and Answers

What is the acronym used to remember the order of operations?

  • PEDMAS
  • PEMDAS (correct)
  • PEMASD
  • PADMES
  • What is the first step in evaluating an expression with the order of operations?

  • Evaluate exponents
  • Evaluate multiplication and division
  • Evaluate expressions inside parentheses (correct)
  • Evaluate addition and subtraction
  • How do you evaluate multiple operations of the same type in an expression?

  • In the order they appear
  • Randomly
  • From right to left
  • From left to right (correct)
  • What is the correct order of operations for the expression 2 × 3 + 12 - 8?

    <p>Multiply, add, then subtract</p> Signup and view all the answers

    What operation is evaluated second in the order of operations?

    <p>Exponents</p> Signup and view all the answers

    Why is the order of operations important?

    <p>To evaluate expressions correctly</p> Signup and view all the answers

    Study Notes

    Order of Operations

    The order of operations is a set of rules used to evaluate mathematical expressions in the correct order.

    Acronym: PEMDAS

    The acronym PEMDAS is commonly used to remember the order of operations:

    1. Parentheses: Evaluate expressions inside parentheses first.
    2. Exponents: Evaluate any exponential expressions next (e.g., 2^3).
    3. Multiplication and Division: Evaluate multiplication and division operations from left to right.
    4. Addition and Subtraction: Finally, evaluate any addition and subtraction operations from left to right.

    Example:

    2 × 3 + 12 - 8

    Following the order of operations:

    1. Multiply 2 and 3: 2 × 3 = 6
    2. Add 12: 6 + 12 = 18
    3. Subtract 8: 18 - 8 = 10

    Important Notes:

    • When there are multiple operations of the same type (e.g., multiple additions), evaluate them from left to right.
    • When there are no parentheses, start with exponents, then multiplication and division, and finally addition and subtraction.

    Order of Operations

    • The order of operations is a set of rules used to evaluate mathematical expressions in the correct order.

    Acronym: PEMDAS

    • PEMDAS is an acronym used to remember the order of operations.
    • Each letter in PEMDAS represents an operation:
      • P: Parentheses
      • E: Exponents
      • M: Multiplication
      • D: Division
      • A: Addition
      • S: Subtraction

    Evaluating Expressions

    • Evaluate expressions inside parentheses first.
    • Evaluate exponential expressions next (e.g., 2^3).
    • Evaluate multiplication and division operations from left to right.
    • Evaluate addition and subtraction operations from left to right.

    Important Notes

    • When there are multiple operations of the same type (e.g., multiple additions), evaluate them from left to right.
    • When there are no parentheses, start with exponents, then multiplication and division, and finally addition and subtraction.

    Example

    • Evaluate the expression: 2 × 3 + 12 - 8
    • Multiply 2 and 3: 2 × 3 = 6
    • Add 12: 6 + 12 = 18
    • Subtract 8: 18 - 8 = 10

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    Description

    Evaluating mathematical expressions in the correct order using the PEMDAS rule.

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