ArithmeticBeginner9 min
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.
ArithmeticBeginner8 min
From store windows to credit card statements, percentages are everywhere. Understand the concept and stop relying on a calculator just to interpret the result.
ArithmeticBeginner8 min
The secret of the rule of three is not the cross-multiplication โ it is correctly identifying whether the quantities grow together or in opposite directions.