Round 486.78 to the nearest hundred

500?

The next closest multiple of 100 to 486.78 is 500.

500

Step-by-step explanation:

- Round the number up to the nearest hundred if the last two digits in the number are 50 or above.

- Round the number down to the nearest hundred if the last two digits in the number are 49 or below.

- If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.