5. Estimating Quantities
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Round the given decimal number to the nearest 100 000.
2* 10^5
We want to round the given decimal number and write the result as the product of a single digit and a power of 10.
231 210
Let's start by rounding the given number to the nearest 100 000. Since the digit in the ten-thousands place is less than 5, we will not modify the digit in the ${\color{#A800DD}{\text{hundred-}}}