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Function Machines

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Question 3
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Here is a number machine.

Input →\rightarrow→ [×4][\times 4][×4] →\rightarrow→ [+5][+ 5][+5] → \rightarrow\,→ Output

a.

What is the output when the input is 8?

[1]
b.

What is the input when the output is 29?

[2]

Function Machines Questions

  1. GCSE
  2. /Maths
  3. /Function Machines

Practise Edexcel GCSE Maths Function Machines with exam-style questions for Foundation and Higher tier. 38 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank