For those of you who have tried the questions in my last post, here are the answers to questions 1 to 22 inclusive. The attached answer documents include worked solutions, not just the answers. All should be clear, but if you have any questions please email me. I’ll do my best to answer promptly! Questions […]
Sequences Sequence – a list of numbers in a given order Terms – the numbers in a sequence Consecutive terms – terms next to one another in a sequence A sequence is a pattern of numbers, connected by a rule. Arithmetic sequences In arithmetic sequences, the difference between consecutive terms is a constant or fixed […]
If you’re planning to start A Level Maths in September, a bit of preparation over the summer can ensure you get off to a really good start. There are a few topics from GCSE that are really useful to know well before you start your A Level course. Numbers and Indices Fractions § Adding fractions […]
What is a square number? A square number is an integer that is a perfect square of another integer. In plain English, if you multiply a whole number by itself, the result is a square number, for example 5 x 5 = 25, so 25 is a square number. Square numbers are very useful, and […]
4 Rules for working with probability tree diagrams: Multiply the numbers along the branches to get the end results The numbers on any set of branches which all meet together at a point must always add up to 1 Check probability tree diagrams are correct by making sure that the end results add up […]
Simultaneous equations A pair of linked equations with unknown numbers represented by the same two letters in each equation. Example 2x + 3y = 11 5x + 2y = 18 To solve a pair of simultaneous equations, find the values for the unknowns that fit both equations. Simultaneous equations can be solved graphically or algebraically. […]