Rounding and Estimating Whole Number

Rounding and Estimateing Whole Number

If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 27 rounded to the nearest ten is 30.If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. Example: 21 rounded to the nearest ten is 20.

Estimating is an important part of mathematics and a very handy tool for everyday life. Get in the habit of estimating amounts of money, lengths of time, distances, and many other physical quantities.

45=50545=5507,293=7,30063,499=63,000

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