One year ago I also started mental calculation with 8*8, I thought I may catch up with the top ones without hindrances, but for 2 months my accuracy and speed didn’t improve, and sometimes I feel I get even worse.
Also I abandoned division to solely focus on multiplication, this is a hidden danger I only managed to tackle this year, and the process is filled with doubts and pains.
Later I switched to smaller digits, and everything’s getting better.
Only do big digits ones after getting extremely confident on smaller ones. That’s the most important lesson I learned at the age of 17.
My accuracy is almost fine. In 80% of cases I get the correct answer.
What I have to improve undoubtedly is my speed. And I dont know how. Thats the problem.
I wonder when and how long do you practice now?
I practice 1 hour every day.
Maybe you could try to do more tasks at once;
Use a pomodoro clock;
Play white noises to avoid distractions;
Reduce color temperature of the monitor to avoid strain eyes;
These are the rules I follow.
Beginners benefits a lot from shortcuts, but since you are already quite an expert, maybe only practice can make you much faster.
Anyway, keep the good work Benjamin.
Did you calculate this from left to right?
Or from right to left.
And one thing there are 3 zeroes so atleast they can save my time if I do this.
I calculate it from right to left.