If you’re old enough, you remember being told in school that “You won’t always have a calculator with you” in math class. There’s at least one person who does, and he’s now a multiple record-holder at 14. Aaryan Shukla set his first world record last year by recording the fastest time to mentally add 50 five-digit numbers on a TV show, doing it in 25.19-seconds.
He also holds the record for the fastest times to add 100 four-digit numbers, 200 four-digit numbers, 50 five-digit numbers, divide a 20-digit number by a 10-digit number, multiply two five-digit numbers, and multiply two eight-digit numbers. The boy nicknamed the “Human Calculator” by Guinness World Records says he practices math for five to six hours a day to stay sharp for competitions.
Source: UPI