Question

5-4 = 23
8-1 =63
6-16 =32
3-9 = 6
3 -81 = ?
challenge for to become an ace​

Answer 1

The answer is ZERO

Let me explain:

$5 \: - \: 4\: = 23$

In this case, take the square of given first number, which will be 25 here (5 square)

Nextly, take the square root of the given second number which will be 2 here (square root of 4)

Then we will have;

$5 {}^{2} - \sqrt{4 \:}= 25 - 2 = 23$

Do the same thing with every equation:

${8}^{2} - \sqrt{1} = 64 \: - 1 \: = 63$

${6}^{2} - \sqrt{16} = 36 \: - \: 4 = 32$

${3}^{2} - \sqrt{9} = \: 9 \: - \: 3 = 6$

And finally we have,

${3}^{2} - \sqrt{81} = 9 \: - \: 9 = 0$

Therefore,

0 is the answer.

Note that I have completed the challenge..

Now its your turn!