How do you round 9999 to the nearest thousand?

To round 9999 to the nearest thousand, you get 10000.

When rounding numbers, you look at the digit in the place value to the right of the one you're rounding to. In this case, we're rounding to the nearest thousand, so we look at the hundreds place. The number in the hundreds place of 9999 is 9. According to rounding rules, if this digit is 5 or greater, you round up the number in the place value you're focusing on. If it's less than 5, you round down.

Since 9 is greater than 5, you round up the thousands place from 9 to 10. This means that 9999 rounded to the nearest thousand becomes 10000. Essentially, you are increasing the thousands digit by 1 and changing all the digits to the right of it to zero.

Rounding helps simplify numbers, making them easier to work with, especially in estimation and mental calculations. It's a useful skill in many areas of maths and everyday life, such as when dealing with money, measurements, or large quantities.