Earlier this year, I found a great book called “Speed Mathematics” by Bill Handley. Now I’ve read a lot of different material related to doing faster calculations, but it had all seemed too contrived ...

Roopashree Sharma is a seasoned content writing professional with over 5 years of experience in digital journalism, specialising in writing explainers and IQ quizzes across geopolitics and strategic ...

Math can be terrifying for many people. This list will hopefully improve your general knowledge of mathematical tricks and your speed when you need to do math in your head. 1. The 11 times trick We ...