add all the numbers together.
10,12,15,13=40
then divide by the number of digits you added together.
40 divided by 4 is 10
the average is 10
Chat with our AI personalities
Creative math is hands on math, such as using materials and vision instead of working out the problems on a sheet of paper.
first you get a pen then a piece of paper and you draw the ABAC pattern in math.
Math is not just math you have to study it like subtration and addition. You use it on sheets or paper work.
The word "mean" in math means the same thing as average. Mean is just a nickname for average.
the mean is the average