# Skills

Lesson-style posts teaching specific maths skills

## How to answer Rate of Flow questions (GCSE Maths)

Rate of flow is a topic that’s sometimes omitted in GCSE Maths text books, or perhaps included in the form of just a question or two in the section on compound measures. It’s only needed for the Higher Tier so…

## Factors, multiples, HCF and LCM questions and problems

In this post we’ll look at HCF and LCM questions, and other situations and types of problems where you need to use what you know about factors and multiples. They start off pretty straightforward, then go on to word problems…

## Working with factors and multiples, HCF and LCM

Factors and multiples have a wide variety of uses in many different areas of Maths, so it’s a fundamental topic that you need to have a good grasp of. In this post we’ll look at how to identify a number’s…

## Exam skills for GCSE Maths: maximise your marks

Your exam skills can make a huge difference to your mark in GCSE Maths. Believe it or not, the examiner marking your Maths exam (or any other exam) wants to give you as many marks as possible! They want to…

## Can I really get a guaranteed A or A* at A-level?

“Guaranteed A or A* at A-level!” Have you seen an ad on social media for a course promising you (or your child) an A or A* at A-level, or your money back? Have you been tempted to sign up? Before…

## How to apply the Rules of Divisibility

Can you tell, just by looking at the number 31845, whether it can be divided by 5 without leaving a remainder? How about rules of divisibility for 3 or 9 or 15: will there be a remainder if you divide…

## Fractional indices: Essential skills for GCSE and A-level Maths

This article is Part 2 of a two-part series. Part 1 covers all the Foundation content – basics, laws of indices, negative indices – and you can find it here. In this post we’re picking up where that one left…

## Indices 1: Essential skills for GCSE and A-level Maths: Basics, index laws, negative indices

What are indices, and what do I need to know about them? “Indices” is the plural of index. An index is another name for a power, also sometimes called an exponent. It’s a small number written as superscript, such as…

## How to work with upper and lower bounds

Once you’ve got to grips with the basic techniques involved in rounding numbers, as covered in my recent blog post, the next step is to deal with upper and lower bounds. The section down to the embedded video is required…

## How to round numbers for GCSE Maths

For both Foundation and Higher GCSE – and also for other Level 2 Maths qualifications – you need to know how to round numbers: to the nearest whole number, ten, hundred or thousand to the nearest tenth or hundredth to…

## Confused by BIDMAS / BODMAS / BEDMAS / PEMDAS? Try GEMA!

Remind me again, what’s BIDMAS? If you grew up in the UK then it’s likely that you’ve been taught BIDMAS or BODMAS to help you remember the order of operations – what order you should do things in – in…