The roll tag. Roleplays using dice rolls should preferably use this rather than the dice roller to the left.
[roll]{Roll 1}1d6{Roll 2}4d6[endroll]
[blockquote]Roll 1 1d6 : 3, total 3
Roll 2 4d6 : 1, 2, 6, 5, total 14[/blockquote]
More ways to use the tag found here:
http://custom.simplemachines.org/mods/index.php?mod=2032