Here is a number machine.
input → ×6\times 6×6 → +2+ 2+2 → output
Find the output when the input is 4
Find the output when the input is -5
Find the input when the output is 50
Practise OCR GCSE Maths Function Machines with exam-style questions for Foundation and Higher tier. 39 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.