Here's a few videos on how to calculate the surface area of a cone and hemisphere, that I hope might be useful. They are becoming a little more popular on GCSE mathematics as you need to demonstrate a clear, logical method. The questions can be fairly straightforward, although you need to remember a few different formulas: Surface area of a cone = pi x r x l Surface area … [Read more...]
How to solve a simultaneous quadratic and linear equation
Here's a few videos on how to solve a simultaneous quadratic and linear equation, that I hope might be useful. They are becoming a little more popular on GCSE mathematics as you need to demonstrate a clear, logical method. Occasionally you are given an instruction, such as 'by eliminating 'y',' and I've added a few examples on this post. The main things to remember when you … [Read more...]
How to work with indices – GCSE maths practice questions
GCSE mathematics questions on how to work with indices 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 - I'll arrange a link to the answers very soon :-) The main things to remember when you are asked how to work with indices are: - Learn the basic concepts - for instance … [Read more...]
How To Work Out Reverse Percentages – GCSE mathematics
GCSE mathematics questions on how to work out reverse percentages 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 you are asked how to work out reverse questions are: - Work out the value in its equivalent … [Read more...]
Histograms – GCSE Mathematics questions and answers
Histogram questions appear on many GCSE Mathematics exam papers and you can download some example questions from here. They can be a little challenging and please do practice all of the problems - here's the link to the answers. Histograms are used quite a lot in statistics and are really just a more sophisticated type of bar chart. The difference is that a histogram shows … [Read more...]