This week I watched a Chinese show that was called "Super Brain". The original show is from Germany which is called "Superhirn". The show is to find the most talented people particularly in brain. I was attracted by two children and a women challenged the speed and accuracy of mental arithmetic.
I am interested in math a lot so I try to do the questions shown on the screen. The six-digit numbers were shown only 1 second and then jumped to the next one. I could not even remember those numbers. After watching the show, I decided to search mental arithmetic and hoped to find something interesting. There is a website called windhoff.net/mental_arithmetic. People can practice mental calculation there. I tried several times but I had to use a lot of time to calculate big numbers.
I think there must be some more efficient and more accurate ways to solve the problems so I use the internet and there are many tutorials about training mental arithmetic. Most of the ways are about changing the order, add or minus from the original numbers and so on. It is impossible for us to calculate the addition of subtraction so fast without practicing. The prodigies in the show said he was trained so if we want to get that height, we should make sure that we have time to practice harder and harder.
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