When I do hexadecimal subtraction say, 2A-324 on a casio calculator or any calculator in general, i get the result as FFFFFD06
Why do i get so many F's ?? dosnt F stand for 15 in hex. In any general arithmetic, how many digits should i consider for the final answer, say in a subtraction operation in which the bigger number is negetive (324 in my example).
Is my answer only D06?