Mean, Median and Range: Choosing the Right Summary
Understand three useful ways to describe a small set of numbers, with an outlier example.
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Practical explanations of percentages, measurements, time and everyday maths.
Centimetres, Metres and Kilometres: A Practical Conversion Guide
Learn the direction of common metric length conversions and check whether your answer makes sense.
Minutes to Decimal Hours: A Step-by-Step Conversion
Convert hours and minutes to decimal hours without confusing clock notation with decimal notation.
Ratios and Proportions: How to Scale a Recipe
Use a scaling factor to adjust ingredient quantities while keeping proportions consistent.
Percentage Change vs Percentage Points: Know the Difference
Learn why a change in a percentage and a change in percentage points are not the same thing.
How to Calculate a Percentage: A Simple Everyday Guide
A step-by-step explanation of percentages, with worked examples and a quick way to check your answer.
NUMBER BOOKMETHODS · EXAMPLES · CLARITY
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