2 min de leitura
How to calculate percentages: the three types of problem
How to solve percentage problems of all three kinds — a percentage of an amount, one number as a percentage of another, and percentage change — with checked examples.
Matemática do dia a dia
Porcentagens, razões, conversões de unidades, datas e horas.
2 artigos
1 min de leitura
Ratios and proportions
Simplify ratios, share amounts in a ratio, and solve proportions — the maths behind recipes, maps and scale models.