Sometimes you might be asked to factorise expressions. Factorising is the opposite of multiplying out brackets - i.e. putting an expression into two brackets. A...

These sometimes come up on the exam - so don't forget about them!
Direct Proportion
If two quantities are in direct proportion then when one increases or ...

Sometimes you might be asked to solve simultaneous equations using graphs. You simply plot both equations on the graph and wherever they intersect are the solut...

These are equations you need to solve at the same time...but there's two types you could get..one of which is probably the toughest thing in GCSE maths.
Ones...

You might be asked to find an answer where there is no exact answer and asked to give the number to a degree of decimal places or significant figures. Trial and...

Some questions could involve BOTH algebra and fractions. Double the fun.
You Can Cancel Terms On The Top And Bottomso 2x2 y4/ xy just becomes 2xy3.Look out f...

This is one of the trickiest things you have to do. Basically you have to express a quadratic as a squared bracket with a number on the end to 'complete it'...c...

This solves any equation in the form ax² + bx + c = 0. It's usually given in an exam...but you should learn it and how to use it.
Things To Remember
...

When rearranging and solving equations there is one major rule...whatever you do to one side you have to do to the other. You will be asked to solve an equation...