Underline the digit to the right of the thousands place. Then replace all digits to the right of the thousands place with zeros. So 29, rounded to the nearest thousand is 30, Skip to main content. Module 1: Historical Counting Systems. Search for:. Rounding Whole Numbers Learning Outcomes Identify the place value of a digit used for rounding Round a whole number to a specific place value. Round a whole number to a specific place value Locate the given place value. All digits to the left of that place value do not change.
Underline the digit to the right of the given place value. No—do not change the digit in the given place value. Replace all digits to the right of the given place value with zeros. Solution On the number line, 16, is exactly halfway from 16, to 17, Thus, 16,, rounded to the nearest thousand, is 17, The Method of Rounding Whole Numbers From the observations made in the preceding examples, we can use the following method to round a whole number to a particular position.
Mark the position of the round-off digit. Note the digit to the immediate right of the round-off digit. If it is less than 5, replace it and all the digits to its right with zeros. Leave the round-off digit unchanged. If it is 5 or larger, replace it and all the digits to its right with zeros. Increase the round-off digit by 1. Sample Set A Use the method of rounding whole numbers to solve the following problems. Round 3, to the nearest ten. Solution We are rounding to the tens position. Mark the digit in the tens position Observe the digit immediately to the right of the tens position.
It is 6. Sample Set A Round 9,,, to the nearest ten million. Solution We are rounding to the nearest ten million. Observe the digit immediately to the right of the ten millions position.
It is 4. Since 4 is less than 5, we round down by replacing 4 and all the digits to its right with zeros. Sample Set A Round , to the nearest million. Everything you need to prepare for an important exam!
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Rounding whole numbers Rounding whole numbers is the process by which we make numbers look a little nicer.
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