2d10+10 - what does it means ?

In the game Dungeons and Dragons you roll dice to determine random numbers to see if you succeed or fail things. A d10 is a 10-sided die. So 2d10 is two 10-sided dice.

Since each die has a possible value of 1-10, 2d10 is a value between 2 and 20. The +10 means add 10 to whatever number is created.

2d10+10 = 12-30

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