Simon from Here to Teach (HTT) has many wonderful work-throughs of Edexcel and C&G Functional Maths papers (E3 , L1, L2). Well paced with very excellent audio and video, showing clear methods and working out c. Marvellous for learners to watch over and over as many times as needed. Both non-calculator and non-calculator papers are covered. This paper has a floristry theme but provides practice and revision for any vocational area (or indeed no vocational area!).
I recommend subscribing to Simon's channel to keep up-to-date with all his maths videos.