Hello, my name is QianHong. I want to calculate fast in mind just like my friends. My goal is to calculate as fast as the fastest person I have seen. Besides, use this additional tactic under emergency situation like calculating the gust factor on a plane without being panic. Besides, I would like to join golden eagle flight team (a club) in my school which requires mental math a lot. Time is always limited under unpredictable circumstances, I am glad I can learn mental math now. It is never too late to learn something. I believe it is beneficial to invest time learning mental math.
I haven’t completed the trial for the eagle club, but many conversions e.g. knots to mph, Liters to imp gal, 0.0000035 divided by 12, relationships between time, fuel, distance when climb, cruise and descent, calculating without a calculator but just an e6b (a flight computer that works manually ) you may search it if you’re interested. I am preparing for the next trial session.