These seem to be popular, so I’ve combined three posts into one and made it all a little more user-friendly. Good luck!
Credit card numbers come in a predictable format – four groups of four digits, for example:
4567 5678 6789 7890
‘Zero‘ can also be read ‘oh‘, and sequences of the same digit can be read as ‘double‘, ‘triple‘, etc.
See if you can ‘spell’ these credit card numbers: Continue reading