Percentages, fractions, rule of three and other fundamentals that appear most in the app.
Articles in path
3
Slug
aritmetica
Category
Arithmetic
A fraction is not a strange beast: it represents parts of a whole or a division between numbers. Understand the meaning before memorising the rules.
From store windows to credit card statements, percentages are everywhere. Understand the concept and stop relying on a calculator just to interpret the result.
The secret of the rule of three is not the cross-multiplication — it is correctly identifying whether the quantities grow together or in opposite directions.