Endless Number Base Conversion question generator

This macro-enabled spreadsheet is designed to practice converting between the number bases Decimal (Denary, Base 10), Binary (Base 2), Hexadecimal (Hex, Base 16) and Octal (Base 8) as used in Computing.

There are four worksheets, each having questions converting from one of the number bases to the other three.

Each worksheet generates ten questions every time the ‘Generate Questions’ button is clicked. Once the learners have completed a question, clicking the associated ‘Mark It’ button reveals whether the answer is right or wrong. Changing an answer removes the marking until the button is clicked again.

NOTE: for this spreadsheet to work correctly, the copy of Excel in which it is running must allow macros to execute, and ‘Enable Content’ must be clicked when the spreadsheet is opened.