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...Edexcel gcse computer science answers chapter problem solving algorithms understanding activity there is no single correct solution to this since every student s walk school will be unique it intended highlight the need for instructions specific precise and in a logical order encourage them identify instances of repetition selection e g keep walking until you get end street next cross road providing cars are coming students use all symbols shown figure their flowchart incorporates iteration may simply sequence processes start put plug turn on taps add bubble bath temperature too hot down cold tap ok yes enough water off pearson education ltd copying permitted purchasing institution only material not copyright free must familiar with pseudo code which used frame some exam questions paper but they don t have themselves can any unambiguous easy follow send enter first number display receive firstnumb from keyboard second secondnumb set thirdnumb ask user username repeat an existing entere...