Add Yahoo as a preferred source to see more of our stories on Google. Feb. 12 (UPI) --A 14-year-old "human calculator" from India put his mental math to the test and broke six Guinness World Records ...

OK, Ari, what is 567 times 123? And you have exactly three seconds to answer, so you better move fast. SHAPIRO: You can't be serious right now, Juana. SUMMERS: (Laughter). SHAPIRO: There's no way ...

Human calculator vs calculator Posted: November 15, 2025 | Last updated: February 19, 2026 In this video, watch as 10 people face off against a Human Calculator, demonstrating remarkable mental math ...

One of Aaryan Shukla's world records is for mentally adding 100 four-digit numbers in 30.9 seconds. Reading time 2 minutes Remember when your teachers used to say that mental math is important because ...

Feb. 12 (UPI) --A 14-year-old "human calculator" from India put his mental math to the test and broke six Guinness World Records in a single day. Aaryan Shukla, 14, of Maharashtra, set his first ...