Question

What is 98,464 rounded to the nearest ten thousand?

Answer 1

`100,000`

Explanation:

Look at the ten thousand's part of 98,464.

So the cut off point is`" "9 color(magenta)(|)8464`
`" "color(white)(.)color(red)(uarr)`
`" "color(red)("Cut off point")`

The digit to the right of the cut off point is greater than 5 so we round up the `color(red)(9)` by 1 turning it into `color(blue)(10)`. The digits to the right of the cut off point are all changed to 0 giving:

`" ten thousands"`
`" " darr`
`color(white)(10.)color(red)(9)8,464 larr" original number"`
`color(white)(..)color(blue)(10)0,000 larr" rounded number"`