Math Brain Teaser for Genius Brains

This Maths Brain Teaser is for Genius Brains. This is a tough Math Brain Teaser in which one has to find the missing number which will replace the question mark. Let us see if you can decipher the hidden reasoning in this Maths Series and then find the missing number?

Can you find the missing number?

The answer to this "Math Brain Teaser for Genius Brains", can be viewed by clicking on the answer button. 

The Answer is......
0 at Top and
4 at Lower row
For Each Column if A and B are the given digits reading from up to down, then the next column numbers are obtained as below
A*B+MaxOf(A,B)=CD
C is written in the top and D is written in the lower row.

Check Out Brain Teasers to Boost Students Critical Thinking Skills