Proper addition will provide you with the sum for your answer.
it means that you have to add the numbers ALL TOGETHER. :-)
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the mean, also known as the average is calculated by adding up all the numbers together then dividing that by how many numbers you added together.
It means what the answer all together is. For example: 5+8=13. 13 is the total.
You have to add them together, then you divide them by two.
It means that all of the sides in the shape are the same shape and the same size and they slot together when you place the shapes together. * * * * * No, they do not slot together - as a lock and key would. Each one could exactly cover the other.
In Maths, the mean is the mean average; in other words, the average. To calculate the mean (average), you add the numbers you have together and then divide that total by the amount of numbers of had..