The author says in the preface that the book should be accessible to anybody with a maths GCSE. Apparently a maths GCSE is more difficult than a maths O Level. I kept my head above water (I think) till Chapter 6 when we hit geometry, which was my downfall with school maths as well. I just skimmed Chapter 7 on estimates and approximations but re-surfaced with the FAQ in the final chapter, which was more about mathematicians than mathematics.
If a train leaves the station with 5 carts of bananas and drives west for 250 miles, how many mangos does he have? 😂 33m