"to replace a number with another number that tells about how many or how much". What is ths operation called?

This operation is called rounding.

For example, if I scored 97.9 points on a math test, I could round it up to 98. Or, if I scored 92.1 points, then I could round it down to 92. In both cases, the real math scores (both of which are decimals) are replaced by different, whole numbers.

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ShyzaSling ShyzaSling · Answer 2 · 2018-07-29T18:35:46-04:00

ShyzaSling ShyzaSling

29-07-2018

The operation is known as rounding of a number.

This means basically if i measure the temperature of a city and it comes out to be 22.9 degrees. I will round it of to 30 degrees or the amount of significant figures i am designated with.

Similarly if its 22.85 and i have to round of to 3 significant figures it becomes 22.9 degrees.

ROunding off is obviously done watching to which digit we have to.

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