Worksheet

Order of Operations Error Detective

Grade 5 - Math - Building Confidence

NameDate

  1. Order detective: evaluate 4 + 2 x 5 correctly.

  2. A student changed 4 + 5 x 2 into (4 + 5) x 2 = 18. What is the first mistake?

    • using too many factors
    • copying the numbers
    • adding before multiplying

  3. Order detective: evaluate 6 + 3 x 2 correctly.

  4. A student changed 5 + 5 x 5 into (5 + 5) x 5 = 50. What is the first mistake?

    • copying the numbers
    • using too many factors
    • adding before multiplying

  5. Order detective: evaluate 6 + 6 x 6 correctly.

  6. A student changed 6 + 3 x 4 into (6 + 3) x 4 = 36. What is the first mistake?

    • using too many factors
    • copying the numbers
    • adding before multiplying

  7. Order detective: evaluate 4 + 6 x 5 correctly.

  8. A student changed 2 + 3 x 3 into (2 + 3) x 3 = 15. What is the first mistake?

    • adding before multiplying
    • using too many factors
    • copying the numbers

  9. Order detective: evaluate 2 + 6 x 6 correctly.

  10. A student changed 5 + 3 x 3 into (5 + 3) x 3 = 24. What is the first mistake?

    • copying the numbers
    • adding before multiplying
    • using too many factors
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