in mathematical terms, the mean is the average. example,
If the numbers are 86 89 65 and 77 the you add all the numbers together and divide by how many numbers there are, so add 86+89+65+77 you get 317 and divide by 4 = 79.25 so the mean is 79.
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Identify each shape
There are different properties for each of the four basic operations. If you have to identify one, you just have to name it.
it means to figure out what kind of property it is
It mean describe the place that the number is in. For example you have 54,325, and you have to identify the place value for the three you would say the place value of the three is hundreds because it is in the hundreds place.
Department of Corrections, USA. It is a number that can identify an offender