Binary and Hexadecimal Workbook for GCSE Computer Science and Computing (Comp Sci Workbooks)

great instructions!

The content is fine; however, the problem with the workbook is that the website for solutions to the problems does not connect. All they had to do was put the answers in the back of the workbook. I was not able to scan the QR codes, going to binhex.lessons.com only brought back an error message.