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Function Machines

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Question 1

Here is a number machine.

A number machine diagram showing Input entering a box labeled 'x5', which then enters a box labeled '-3', resulting in Output.

Input →×5→−3→\rightarrow \times 5 \rightarrow -3 \rightarrow→×5→−3→ Output

a.

What is the output when the input is 7?

[1]
b.

Here is a different number machine.

A number machine diagram showing Input entering a box labeled '+ 11', which then enters a box with '.....', resulting in Output.

Input →+11→\rightarrow + 11 \rightarrow→+11→ ..... → \rightarrow\,→ Output

When the input is 9 the output is 2.

Complete the number machine.

[1]

Function Machines Questions

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

Practise CIE IGCSE Maths Function Machines with exam-style questions for Core and Extended tier. 3 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) 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