To find the mean of two or more numbers you add all the numbers together and divide by how ever many numbers there are.
Example:
find the mean of the following numbers: 25, 10, 13, & 4
step 1: add the numbers together 25+10+13+4=52
step 2: divide the answer by 4 because you were told to find the mean of 4 numbers 52/4=13
step 3: the answer is 13
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