Money and everyday maths guides
Short, practical explanations of the numbers behind everyday decisions, each linked to a calculator so you can try your own figures.
LoansHow loan interest really worksA plain-English explanation of how monthly loan payments split between interest and principal, why shorter terms cost less, and how extra payments save money.SavingCompound interest explained simplyWhat compound interest is, why starting early matters so much, how to use the rule of 72, and how to estimate what regular saving can grow into.ShoppingHow to compare discounts and dealsLearn how stacked discounts really work, how to compare percent-off with money-off deals, and how to calculate the unit price so you always know the better buy.Everyday mathsSplitting bills and tipping fairlyHow to work out a tip, split a restaurant bill fairly when people ordered differently, and how tipping customs vary.Health numbersUnderstanding BMI and its limitsWhat BMI is, how it is calculated, the adult categories, and its important limits for athletes, older adults and different body types.