Two number cubes are rolled. what is the probability that the sum of the numbers rolled is either a 4 or a 10?

10 out of 36 chances. If you roll a dice you have 36 chances to get pairs of different numbers. There are 6 numbers: 1, 2, 3, 4, 5, & 6. The pairs you can get to get a sum of four are: 2,2. 3,1. 1,3. The number pairs you can add to get the sum of 10 are: 5,5. 4,1. 3,2. 6,4. 1,3. 1,4. 2,3. 4,6. 

Not sure if it is correct, but I tried. Hope that helped!