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Rounding Whole Numbers

Rounding Whole Numbers to Any Place

Rounding makes numbers simpler and easier to work with while keeping them close to their original value. You can round a multi-digit number to any place value, such as the nearest ten, hundred, thousand, or ten thousand.

The Rules of Rounding

To round a number to a specific place value, follow these simple steps:

  1. Find the target place: Identify the digit in the place you are rounding to.
  2. Look to the right: Look at the digit immediately to the right of your target place.
  3. Round Up (5 or more): If the digit to the right is 5,6,7,8,5, 6, 7, 8, or 99, add 11 to your target digit.
  4. Round Down (4 or less): If the digit to the right is 0,1,2,3,0, 1, 2, 3, or 44, keep your target digit exactly the same.
  5. Change to zeros: Change all the digits to the right of your target place to zeros.

Example Problems

Example 1: Round 74,58274,582 to the nearest thousand

  • Target place: The digit in the thousands place is 44.
  • Look right: The digit to the right (in the hundreds place) is 55.
  • Rule: Because the digit is 55, you round up. The 44 becomes a 55.
  • Answer: 75,00075,000

Example 2: Round 345,678345,678 to the nearest ten thousand

  • Target place: The digit in the ten thousands place is 44.
  • Look right: The digit to the right (in the thousands place) is 55.
  • Rule: Because the digit is 55, you round up. The 44 becomes a 55.
  • Answer: 350,000350,000

Example 3: Round 6,7496,749 to the nearest hundred

  • Target place: The digit in the hundreds place is 77.
  • Look right: The digit to the right (in the tens place) is 44.
  • Rule: Because the digit is 44, you round down. The 77 stays the same.
  • Answer: 6,7006,700