Rows and Collumns
Cell and Active Cell
Making a tittle
By doing =sum(range) it will create a total of the numbers in your range.
By doing =average(range) will figure the average of your numbers for you.
By doing=min(range) will find the smallest number in your data.
By doing =max(range) will find your largest number in your data.
These are just some keys that will help you out.
Also by going to the bottom right of an active cell, your mouse will become cross hairs, click down and when released will copy all of the active cell's data into those cells. Or it will find the totals, averages,etc.