Time | Rounding

Rounding is a math strategy that uses addition and division strategies.Rounding means to circle it to the nearest ten, hundred, thousands, and more.

Addition and division are both operations 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 25. Then divide them by the amount of numbers there are which makes 5.

Here comes the rounding part comes in so if the numbers are 5-9 they are called high five and the numbers that are 0-4 they are called four floor. Look for the last digit. Example: 21.85 now becomes 21.9 because 5 is above.

Rounding can help people get better at adding and dividing. Also at understanding how to round numbers in to 1 decimal place.

LI investigate units of time.