Subtract signed binary number

Question

WAP To subtract two binary vectors (in sign and magnitude form)
0010-1101=0101
0110-0011=0011

Answer 1

I don't understand the question. Can you explain this thoroughly.

Answer 2

1 You must know what signed numbers are
2 You Must know how to write them in a particular form
3 You must know how to add them
4 You must know how to subtract them
5 Make a program to input two signed binary numbers and display the result of subtraction
Subtraction takes place as given in description eg