6855
-6536
____
319
The answer is 319 because 5 minus 6 can't do so take 10 from the 5 from the left and make the 5 in the right 15 so 15 minus 6 makes 9 and 4 minus 3 makes 10 and 8 minus 5 make 300 and 6000 minis too is 0 ads rip plus 10 plus 9 and it's 319. Hope this helps