Okay, I've always admired how young people and old geniuses are able to fast mental calculations--how can I obtain this power?For example, if someone was like 1,626 x 4.35, I can sort of round it (1,600 x 4 = 6,400ish), but it's the precision and speed that's impressive. Now, I can't let all the indian spelling bee champions win all the bar trick money, and I know I can parlay this into getting some sweeeeeeet top from Panera Bread cashiers as a flirting technique. HELP ME BROS, BRAS, and BRUVS
>>33919232C'mon!!!
>>33919232Basically just practice drills with the most efficient formulas you can find in terms of mental steps taken to calculate. Doing the drills every day for a bit is key.
>>33919522Cool, I do that and I just downloaded "Secrets of Mental Math", but it's funny because I can play music automatically, but I think that having another circus trick will have bitches thinking I can win at the casino (which would be cool, too).It also helps you mentally mog people before they try to act out of line, which can be useful in certain contexts.Are there any anons out there who do this or are they too busy getting laid/paid to share their sexy numerical secrets?
>>33919232>I can sort of round it (1,600 x 4 = 6,400ish)Now add about 10%
>>33920899Percentages are easy for me, as you can just find the 10% (move a decimal one place) and then shave it or expand it. I feel like there's a missing visualization element that comes naturally to me when I play music (I can "hear" things before I play them and decide from a buffet of directions if I'm improvising). Like, instead of crunching numbers, I could see 20 x 25 as twenty rows of twenty-fives. I can picture it in my mind as a oblong rectangle (being 20% larger than 20 x 20, a perfect square).It seems like my mind is conditioned to be slow and stupid (thanks alot, asshole teachers and dumb classmates), but I used to create my own theorems when I got bored in math class. I think of it like the Dvorak typewriter versus the old QWERTY ONES.Anons, chime in.
>>33920899Just to add, that will give you 7040. The exact answer is 7073.1. That’s a variance of only 0.47%.
>>33920912>this anon may be getting math pussyI just used the number as an example, and I want to be quicker than someone can type on a calculator. For all elephants and porpoises, this little cheetah wants to think of 1,626 x 4.35 as more like 1,626 x 435 (then add two decimal places when you're done).It seems like most people who are good with numbers are able to think:"ahhhh, _ _ _ _ x _ _ _ within these yields gives me this range, so that narrows down the possibilities." For that range, it would be like:max _ _ _ _ : 9,999min _ _ _ _ : 1,000max _ _ _ : 999min _ _ _ : 100I guess the shorthand for 4 digit x 3 digit numbers would be:MAX will never exceed 9,989,001 MIN will never be below 100,000So I guess I need to understand these rules more intuitively
>>33919232Practice the abacus, with the beads, you know? My kid did that and I can just ask him math stuff I think about while driving like how many miles would I need to own an electric car before it would ever pay for the savings in fuel and how many years would that be. He spits it right out. The memory learns a physical thing, like play piano or using a power tool. You can do it in your imagination without the actual beads. I’d say he put in a couple hundred hours tho.
>>33920995That's not a bad idea at all. >this is why i love 4chan and all you anonsIf I invite some cunny over, that'll give her something to do while I do her taxes.>I’d say he put in a couple hundred hours tho.That seems like a good trade off for permanent skills. I'm 41 now, but I still learn new instruments and skills daily, so I think my years of smoking weed and avoiding toil mean I still got some neuroplasticity. Still got it...
