Two-step function machines
5th grade (Year 6 in England) · 16 questions · Common Core: 5.OA.B.3 · England: Y6 Algebra
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Question 1
A function machine does: × 8, then + 8. The output is 80. What was the input?
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Question 2
Inputs 3, 9, 10 give outputs 22, 58, 64. The machine multiplies by 6 and then adds a number. What number is added?
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Question 3
A function machine does: × 9, then − 1. What is the output when the input is 9?
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Question 4
A function machine does: × 7, then + 5. The output is 75. What was the input?
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Question 5
Inputs 10, 2, 8 give outputs 27, 11, 23. The machine multiplies by 2 and then adds a number. What number is added?
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Question 6
A function machine does: × 5, then + 8. What is the output when the input is 4?
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Question 7
A function machine does: × 3, then + 15. The output is 48. What was the input?
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Question 8
Inputs 6, 10, 5 give outputs 28, 44, 24. The machine multiplies by 4 and then adds a number. What number is added?
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Question 9
A function machine does: × 8, then + 15. What is the output when the input is 12?
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Question 10
A function machine does: × 3, then + 12. The output is 42. What was the input?
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Question 11
Inputs 6, 3, 5 give outputs 20, 14, 18. The machine multiplies by 2 and then adds a number. What number is added?
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Question 12
A function machine does: × 8, then − 8. What is the output when the input is 13?
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Question 13
A function machine does: × 2, then + 19. The output is 29. What was the input?
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Question 14
Inputs 10, 3, 2 give outputs 66, 24, 18. The machine multiplies by 6 and then adds a number. What number is added?
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Question 15
A function machine does: × 5, then + 12. What is the output when the input is 12?
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Question 16
A function machine does: × 9, then + 13. The output is 85. What was the input?
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