Carol Vorderman asked this question on a recent Big Brain Game:

“Using simple maths, how can you reach a total of 100 using only six nines?”

I took this to mean that you had to use six instances of the digit ’9′ and simple mathematics. However, their answer took it that you could string the digits together to make bigger numbers without using maths at all.

Their answer was:

99 / 99 + 99 = 100

Yes, it works, but I have the CORRECT answer:

( 9 * 9 ) + ( 9 + 9 ) + ( 9 / 9 ) = 100

Mine is much more mathematically sound.