Similar to one above - if we increase something by x% and then reduce it by x% we are back to 100%

I've been using AQA or Edexcel topic tests, or sometimes just making my own from past papers. Year 12 I like Section A from old MEI C1 papers

At least 1 for each travel day.

Logs- used lesson 7 of this when students were struggling with where to start rewriting to solve www.emathinstruction.com/courses/alge...