The achievement
In February 2025, Guinness World Records reported that Maharashtra’s Aaryan Shukla had set six mental-calculation records in Dubai. One challenge involved adding 100 four-digit numbers: his recorded time was 30.9 seconds.
Another involved adding 50 five-digit numbers in 18.71 seconds.
Behind the stopwatch
The report described a 14-year-old who had begun practising mental calculation at six and entered international competition at eight. It also described a substantial daily practice routine.
These results belong to particular record challenges; they are not a measure of every kind of intelligence.
For a reader who enjoys numbers, the interesting question is how a difficult task becomes familiar through practice. Try a small calculation puzzle, write down your method, then compare it with a friend’s. Speed can be one goal; understanding why your method works is another.
SOURCES
- Guinness World Records · 12 February 2025 ↗ · Record organisation report



