GCSE mathematics questions on how to work out 3D Pythagoras appear on many exam papers and you can download the questions from here. They can be a little challenging and please do practice all of the problems - here's the link to the answers. The main things to remember when working with 3D Pythagoras questions are: - There's usually 2 questions and you'll be … [Read more...]

This post is just a random collection of tough maths questions - asked by YouTube subscribers, tutoring students, or occasionally my own study. Many of the questions are 6 - 9 grade and present a good level of challenge for all students. It's quite likely that the videos will include word problems, statistics, geometry, algebra and some of the new topics that will be on … [Read more...]

Learning how to use upper and lower bounds can be very important - particularly in manufacturing... .. although they tend to be called 'tolerances' and are not always related to just measurements. For example 'high tech' manufacturers need to work within very tight tolerances: On a Boeing 747 the jet engine turbine blades  spin at upto 3500 revs per minute - 60 times … [Read more...]

Repeating decimals to fractions.. .. is a favourite GCSE question, usually grade 7+ and worth around 2/4 marks. A repeating decimals to fractions question is a little more 'abstract' but, once you understand the principles, it should be relatively straightforward. The answer is to use algebra to show a formal proof. As with most mathematics aim for a logical progression … [Read more...]