Found on YouTube: Only Genius can see the right number | IQ Test #math #short #math part 23

Only Genius can see the right number | IQ Test #math #short #math part 23
Maths at Your Fingertips
Only Genius can see the right number part 3 | IQ Test #math #short #math part 23.
https://www.youtube.com/watch?v=RXjmj5Qt-qk