I Used to Know That: Maths

Rediscover the forgotten logic of your school days and regain your numeric edge.

We all learned it once, but life has a way of making us forget. This nostalgic yet practical guide rescues those lost skills—from long division to basic trigonometry—and brings them back into your daily arsenal. It’s the perfect "safety net" for any adult who wants to stop feeling intimidated by numbers.

 ► Reclaiming the essential skills of logic and numbers — The INTELLECTUAL in the BELOW KEY FEATURES offer a serene look. ◄

• Reconnect with the fundamental tools of logic and problem-solving you once mastered.
• Master the shortcuts and mental tricks that make everyday calculations effortless.
• Boost your professional confidence by revisiting the essential language of mathematics.