Editing Dice (section)

===Role-playing dice sets and percentile dice===
A role-playing dice set typically comprises seven dice: one each of d4, d6, d8, d12 and d20, and two d10s, one labeled from 0 to 9 and the other labeled in tens from 00 to 90. These last two, taken together, are called ''percentile dice''. In standard dice notation, a roll of percentile dice can be expressed as "d100", although "d%" is also seen.

A d100 roll is typically performed like a 2d10 roll, using both decahedral dice together. Adding the numbers shown gives a random number from 0 to 99 – although 0+00 is typically read as 100,<ref>https://www.dicedragons.co.uk/blogs/dice-advice/how-to-roll-a-d100</ref> for consistency with other dice notation.

The [[zocchihedron]] was invented as an alternative to percentile dice. Unlike percentile dice, the zocchihedron is a true d100 die, though no single die of 100 sides can be as consistently fair.<ref>https://rpggeek.com/blog/1051/blogpost/38414/interview-with-lou-zocchi-the-first-dice-idea-i-wa</ref>