Create a series of equations to produce each number from 0 to 20, using just '4 Fours' in each equation, along with basic math symbols. Don't forget the standard order of operations, as you'll need to ...

Randomly scramble the digits 0, 1, 2, 3, 4, 5 and 6 to form a seven-digit number (or a six-digit number if the leading digit is 0). Rank the following events in order ...