Maths

Rounding is finding the nearest ten, hundred, thousand.

Addition and division are both strategies the are used for rounding. To round the person needs to find the mean, to find the mean get a set of numbers like 5,7,1,9,3 and then add them altogether which would make the number 25. Then divide them by the amount of numbers there are which makes 5.

Now this is were the rounding begins, if the number is 5-9 that's called high five. If the number 0-4 it's called floor four For example 21.85 then it becomes 21.9