Even I take a lot of time to solve this level. See the sum of rows and columns should be some 3 digit number. Not even thousand. Because rounding to zero is easier.
And I decline to use a calculator for finding solution. I don't want to use pen and paper either. And I strongly believe that even though I am quite weak in many useful things, in arithmetic I am quite strong. So I shataka it out.
Try out and let me know when you clear this level.