Guinness World Records on MSN

Fastest mental addition of ten 10 digit numbers

Aaryan Shukla set a record for the fastest mental addition of ten 10 digit numbers in 1 minute 18.08 seconds.
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 ...