Found on YouTube: Only Genius can see the right number | IQ Test #math #short #math part 11

Only Genius can see the right number | IQ Test #math #short #math part 11
Maths at Your Fingertips
Only Genius can see the right number part 3 | IQ Test #math #short #math part 11.
https://www.youtube.com/watch?v=QLIDuTEqZm0