Question

What is 2,874,992 rounded to the nearest ten thousandth?

Answer 1

See a solution process below:

Explanation:

The 10,000 term is currently a `color(red)(7)`:

`2,8color(red)(7)4,992`

To round to a certain place you look at the digit to the right of the place you are rounding to.

• If the digit to the right is greater than or equal to 5 you add 1 to the digit in the place you are rounding to and you make all the digits to the right `0`

• If the digit to the right is less than 5 you keep the digit in the place you are rounding to the same and you make all the digits to the right `0`

The digit to the right of the 10,000 place is a `color(blue)(4)`:

`2,8color(red)(7)color(blue)(4),992`

• `color(blue)(4)` is less than 5 so we keep the digit in the 10,000 place as `color(red)(7)` and we make all the digits to the right `0`

`2,8color(red)(7)color(blue)(4),992 = 2,8color(red)(7)0,000` rounded to the nearest 10,000