Simulate random rolls
Rather than taking the time to roll the cubes many times yourself and record the results you can use the spreadsheet capabilities of your computer to create simulated rolls.
Use a spreadsheet to create random rolls of a pair of numbered cubes. Refer to
Technical Hints to use a spreadsheet.
Create random rolls of each numbered cube in the first two columns. Refer to
Technical Hints on how to create random numbers for each of the six possible rolls for each die.
Create a sum of the first two columns in the third column. Refer to
Technical Hints on how to create a sum.
In the fourth column, recopy the numbers in column three and sort the numbers. Refer to
Technical Hints on how sort.