⚡️🇮🇳 A 14-year-old Indian set…

⚡️🇮🇳 A 14-year-old Indian set a world record by adding 100 four-digit numbers in 30.9 seconds.

On average, it took him less than half a second to do each task, and this is just one of six records he set in a day 🤯

Here are the others:
- 200 four-digit numbers in his head in 1 minute 9.68 seconds,
- 50 five-digit numbers in 18.71 seconds,
- dividing a 20-digit number by a 10-digit number (a series of 10 examples) in 5 minutes 42 seconds,
- multiplying two five-digit numbers (a series of 10) in 51.69 seconds,
- multiplying two eight-digit numbers (a series of 10) in 2 minutes 35.41 seconds.

The guy uses a mental arithmetic technique - he counts in his head on an imaginary abacus.