Editing Dice (section)

===Rolling d100 Using Two d10s===
[[Image:D10_bronze_thorns.jpg|thumb|Your d10 dice are not this good-looking. But they are probably easier to read from across the table and less like the dreaded caltrops.]]

[[Dark Heresy|Some Systems]] require you to roll d100s frequently. There's a better way of doing it than rolling a golf ball with 100 sides. 

Get out two d10s. Use one die to denote the singles digit and another die to denote the tens digit. Some d10s have two digits per side (see above) to make differentiating your digits easier, but you can roll d100 with any two d10, provided you specify beforehand which die is the tens and which the ones.

Much as with the d3, the next step is where three sides now engage in renewed holy war:
*Either you treat both dice as 0-9. Did you roll a '''20''' and a '''4'''? That's a '''24'''. A '''90''' and a '''1'''? '''91'''. A '''00''' and a '''5'''? Just a '''5'''. The drawback is the possibly ambiguous result of two zeroes: a '''00''' and a '''0'''. Obviously you rolled a '''100'''. Why? Because the alternative is a '''0''' which you can never roll with any other die. That, and the system assumes a roll from '''1''' to '''100''', not '''0''' to '''99'''.
*Alternatively, you treat both dice as 1-10. The drawback is that if you roll a '''50''' and a '''10''', you need to do some basic addition because you've just rolled a 60. And if you rolled a 100 and a 5 then you've obviously gotten a 5, not a 105.
*Finally, you can have the tens die be a 0-9 and the ones die be a 1-10. This removes all drawbacks sans the addition one, but is more complex.

Mathematically, each digit is determined in an independent manner. There are exactly 10*10=100 two-digit combinations, all equally likely. You now have a uniform distribution of 100 different results, as desired.

This means that as with most forms of religious conflict, neither side is truly superior, as long as you're consistent then you've replicated a d100 without needing to buy a golf ball with numbers on it. Anyone who legitimately thinks the other way to roll is somehow "wrong" is likely [[Grognard|the hairiest of neckbeards]] or [[That Guy|has a stick shoved so far up their ass that their nose is blocked]].
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