LearnElementary MathPlace value and rounding

Round whole numbers

Look at the digit to the right of the place you're rounding to.

Elementary Math: Place value and rounding
  1. Find the place you're rounding to.
  2. Look at the digit just to its right.
  3. If it's 5 or more, round up. If it's 4 or less, keep the digit the same.
  4. Change the digits to the right to 0.

Work through it

Round to the nearest hundred.

The hundreds digit is 4. The next digit is 8.

8 is 5 or more, so round up: .

Round to the nearest ten.

The tens digit is 8. The next digit is 2.

2 is less than 5, so keep the 8: .

Watch out for this

Rounding to the nearest hundred gives , because 7 rounds the 4 up.

Only look at the digit right next to the place. The tens digit is 4, so rounds to .

Your turn

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