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MathsAges 13-15

Order of operations

Apply multiplication before addition to evaluate multi-step arithmetic expressions accurately. Review suitability for your learners before teaching.

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Age band:Ages 10-12Ages 13-15

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Worksheet StudioPractice pack · Ages 13-15

Order of operations

Take your time. Show your thinking.

  1. 1. Evaluate 19 + 10 × 3.

    LHS=RHS
    19 · 10 · 3 · Order of operations

  2. 2. Evaluate 28 + 4 × 2.

    LHS=RHS
    28 · 4 · 2 · Order of operations

  3. 3. Evaluate 3 + 11 × 9.

    LHS=RHS
    3 · 11 · 9 · Order of operations

  4. 4. Evaluate 20 + 7 × 2.

    LHS=RHS
    20 · 7 · 2 · Order of operations

  5. 5. Evaluate 4 + 6 × 10.

    LHS=RHS
    4 · 6 · 10 · Order of operations

  6. 6. Evaluate 25 + 9 × 2.

    LHS=RHS
    25 · 9 · 2 · Order of operations

  7. 7. Evaluate 23 + 2 × 7.

    LHS=RHS
    23 · 2 · 7 · Order of operations

  8. 8. Evaluate 9 + 8 × 3.

    LHS=RHS
    9 · 8 · 3 · Order of operations

  9. 9. Evaluate 5 + 8 × 8.

    LHS=RHS
    5 · 8 · 8 · Order of operations

  10. 10. Evaluate 22 + 6 × 12.

    LHS=RHS
    22 · 6 · 12 · Order of operations

  11. 11. Evaluate 24 + 12 × 2.

    LHS=RHS
    24 · 12 · 2 · Order of operations

  12. 12. Evaluate 29 + 3 × 4.

    LHS=RHS
    29 · 3 · 4 · Order of operations
12 questions · Seed 42 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 13-15

Order of operations

Answers and reasoning. Review before teaching.

  1. 1. Evaluate 19 + 10 × 3.

    49

    Multiply first: 10 × 3 = 30. Then add 19: 19 + 30 = 49.

  2. 2. Evaluate 28 + 4 × 2.

    36

    Multiply first: 4 × 2 = 8. Then add 28: 28 + 8 = 36.

  3. 3. Evaluate 3 + 11 × 9.

    102

    Multiply first: 11 × 9 = 99. Then add 3: 3 + 99 = 102.

  4. 4. Evaluate 20 + 7 × 2.

    34

    Multiply first: 7 × 2 = 14. Then add 20: 20 + 14 = 34.

  5. 5. Evaluate 4 + 6 × 10.

    64

    Multiply first: 6 × 10 = 60. Then add 4: 4 + 60 = 64.

  6. 6. Evaluate 25 + 9 × 2.

    43

    Multiply first: 9 × 2 = 18. Then add 25: 25 + 18 = 43.

  7. 7. Evaluate 23 + 2 × 7.

    37

    Multiply first: 2 × 7 = 14. Then add 23: 23 + 14 = 37.

  8. 8. Evaluate 9 + 8 × 3.

    33

    Multiply first: 8 × 3 = 24. Then add 9: 9 + 24 = 33.

  9. 9. Evaluate 5 + 8 × 8.

    69

    Multiply first: 8 × 8 = 64. Then add 5: 5 + 64 = 69.

  10. 10. Evaluate 22 + 6 × 12.

    94

    Multiply first: 6 × 12 = 72. Then add 22: 22 + 72 = 94.

  11. 11. Evaluate 24 + 12 × 2.

    48

    Multiply first: 12 × 2 = 24. Then add 24: 24 + 24 = 48.

  12. 12. Evaluate 29 + 3 × 4.

    41

    Multiply first: 3 × 4 = 12. Then add 29: 29 + 12 = 41.

12 questions · Seed 42 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 13-15

Order of operations

Take your time. Show your thinking.

  1. 1. Evaluate 19 + 10 × 3.

    LHS=RHS
    19 · 10 · 3 · Order of operations

  2. 2. Evaluate 28 + 4 × 2.

    LHS=RHS
    28 · 4 · 2 · Order of operations

  3. 3. Evaluate 3 + 11 × 9.

    LHS=RHS
    3 · 11 · 9 · Order of operations

  4. 4. Evaluate 20 + 7 × 2.

    LHS=RHS
    20 · 7 · 2 · Order of operations

  5. 5. Evaluate 4 + 6 × 10.

    LHS=RHS
    4 · 6 · 10 · Order of operations

  6. 6. Evaluate 25 + 9 × 2.

    LHS=RHS
    25 · 9 · 2 · Order of operations

  7. 7. Evaluate 23 + 2 × 7.

    LHS=RHS
    23 · 2 · 7 · Order of operations

  8. 8. Evaluate 9 + 8 × 3.

    LHS=RHS
    9 · 8 · 3 · Order of operations

  9. 9. Evaluate 5 + 8 × 8.

    LHS=RHS
    5 · 8 · 8 · Order of operations

  10. 10. Evaluate 22 + 6 × 12.

    LHS=RHS
    22 · 6 · 12 · Order of operations

  11. 11. Evaluate 24 + 12 × 2.

    LHS=RHS
    24 · 12 · 2 · Order of operations

  12. 12. Evaluate 29 + 3 × 4.

    LHS=RHS
    29 · 3 · 4 · Order of operations
12 questions · Seed 42 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 13-15

Order of operations

Answers and reasoning. Review before teaching.

  1. 1. Evaluate 19 + 10 × 3.

    49

    Multiply first: 10 × 3 = 30. Then add 19: 19 + 30 = 49.

  2. 2. Evaluate 28 + 4 × 2.

    36

    Multiply first: 4 × 2 = 8. Then add 28: 28 + 8 = 36.

  3. 3. Evaluate 3 + 11 × 9.

    102

    Multiply first: 11 × 9 = 99. Then add 3: 3 + 99 = 102.

  4. 4. Evaluate 20 + 7 × 2.

    34

    Multiply first: 7 × 2 = 14. Then add 20: 20 + 14 = 34.

  5. 5. Evaluate 4 + 6 × 10.

    64

    Multiply first: 6 × 10 = 60. Then add 4: 4 + 60 = 64.

  6. 6. Evaluate 25 + 9 × 2.

    43

    Multiply first: 9 × 2 = 18. Then add 25: 25 + 18 = 43.

  7. 7. Evaluate 23 + 2 × 7.

    37

    Multiply first: 2 × 7 = 14. Then add 23: 23 + 14 = 37.

  8. 8. Evaluate 9 + 8 × 3.

    33

    Multiply first: 8 × 3 = 24. Then add 9: 9 + 24 = 33.

  9. 9. Evaluate 5 + 8 × 8.

    69

    Multiply first: 8 × 8 = 64. Then add 5: 5 + 64 = 69.

  10. 10. Evaluate 22 + 6 × 12.

    94

    Multiply first: 6 × 12 = 72. Then add 22: 22 + 72 = 94.

  11. 11. Evaluate 24 + 12 × 2.

    48

    Multiply first: 12 × 2 = 24. Then add 24: 24 + 24 = 48.

  12. 12. Evaluate 29 + 3 × 4.

    41

    Multiply first: 3 × 4 = 12. Then add 29: 29 + 12 = 41.

12 questions · Seed 42 · Age guidance, not curriculum certification