# Rolling two dice simultaneously - Sum of values - Exploration+Practice

- Author:
- Simona Riva

- Topic:
- Probability

If you roll two standard dice simultaneously and add the values displayed on top, you always get a number between 2 and 12.
Explore the app below and discover how to calculate the probability of getting a given sum.

How many possible pairs of values can you get when you toss 2 dice simultaneously?

What is the probability to get a sum of 1?

What is the sum that is the most likely to occur?

Two sums are the least likely to occur. Which are them?