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Function machines and input–output tables

4th grade (Year 5 in England) · 16 questions · Common Core: 4.OA.C.5 · England: Y6 Algebra

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Date

Score/ 16

  1. Question 1

    A function machine does: × 2, then + 14. What comes out when 12 goes in?

    Answer

  2. Question 2

    A function machine does: × 7, then + 3. The output is 45. What was the input?

    Answer

  3. Question 3

    In → Out: 2 → 10, 4 → 12, 7 → 15. What is the output for 8?

    Answer

  4. Question 4

    A function machine does: × 8, then + 12. What comes out when 8 goes in?

    Answer

  5. Question 5

    A function machine does: × 7, then + 3. The output is 52. What was the input?

    Answer

  6. Question 6

    In → Out: 2 → 16, 3 → 24, 4 → 32. What is the output for 7?

    Answer

  7. Question 7

    A function machine does: × 3, then + 7. What comes out when 4 goes in?

    Answer

  8. Question 8

    A function machine does: × 2, then + 3. The output is 13. What was the input?

    Answer

  9. Question 9

    In → Out: 3 → 7, 5 → 9, 7 → 11. What is the output for 9?

    Answer

  10. Question 10

    A function machine does: × 5, then + 4. What comes out when 8 goes in?

    Answer

  11. Question 11

    A function machine does: × 3, then + 5. The output is 41. What was the input?

    Answer

  12. Question 12

    In → Out: 1 → 4, 8 → 32, 9 → 36. What is the output for 10?

    Answer

  13. Question 13

    A function machine does: × 8, then + 18. What comes out when 10 goes in?

    Answer

  14. Question 14

    A function machine does: × 4, then + 20. The output is 40. What was the input?

    Answer

  15. Question 15

    In → Out: 1 → 4, 6 → 9, 7 → 10. What is the output for 12?

    Answer

  16. Question 16

    A function machine does: × 6, then + 1. What comes out when 4 goes in?

    Answer

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Answer key: Function machines and input–output tables

  1. 1. 38

  2. 2. 6

  3. 3. 16

  4. 4. 76

  5. 5. 7

  6. 6. 56

  7. 7. 19

  8. 8. 5

  9. 9. 13

  10. 10. 44

  11. 11. 12

  12. 12. 40

  13. 13. 98

  14. 14. 5

  15. 15. 15

  16. 16. 25