- #1
trollcast
Gold Member
- 282
- 13
Homework Statement
Calculate the checksum for the following 3 bytes, showing all working without the use of a calculator:
##\displaystyle 01101101 ##
##\displaystyle 00100111 ##
##\displaystyle 00101101 ##
##\displaystyle \text{------------}##
##\displaystyle \text{------------}##
Homework Equations
The Attempt at a Solution
I'm getting the correct answer but my carries are different to the solutions so I'd only 1 mark out of 3:
My answer [I'm putting the carries below the answer line in decimal so you can see them easier]:
##\displaystyle 01101101 ##
##\displaystyle 00100111 ##
##\displaystyle 00101101 ##
##\displaystyle \text{------------}##
##\displaystyle 11000001##
##\displaystyle \text{------------}##
##\displaystyle 1212211##
The solutions answer:
##\displaystyle 01101101 ##
##\displaystyle 00100111 ##
##\displaystyle 00101101 ##
##\displaystyle \text{------------}##
##\displaystyle 11000001##
##\displaystyle \text{------------}##
##\displaystyle 1012011##