14-year-old known as ‘the human calculator’ breaks 6 math world records in 1 day
14-year-old Aaryan Shukla recently broke six world records for mental math. Shulka’s feats include setting the fastest known time to mentally add 100 four-digit numbers (30.9 seconds), 200 four-digit numbers (1 minute, 9.68 seconds), and 50 five-digit numbers (18.71 seconds) and so on… Image credit: Prostock-Studio via Getty Images)