Answer: 111
Step-by-step explanation: first you line up 103 and 8 then add so 8 plus 3 is 11 you keep one 1 and put the other on top of the 0 and 0 plus 1 is 1 so so far we have 11 last you have to add 1 plus 0 and that is 1 so now we have 111. Thanks