IGCSE Computer Science : Binary and Hexadecimal system

Thank you. This has been helpful so far. I'm helping my son with his GCSE revision, and I'm about to start 3) Convert Binary to Denary. I'm not ashamed to say that my brain is hurting right now :)! There's an error, I think, in 2) Short Division; I think you mistakenly switched a couple of digits in the red answer.<br /> Thanks.