Final answer:
A number between 325,500 and 326,499 will round to 326,000 when rounded to the nearest thousand, as the rounding decision changes at the hundreds digit of 5.
Step-by-step explanation:
To determine which number rounds to 326,000 when rounded to the nearest thousand, we need to consider the rounding rules. The last three digits (hundreds, tens, and ones places) of the number are looked at to decide whether the number should be rounded up or down. If the hundred digit is 5 or greater, the number rounds up. Otherwise, it rounds down. Therefore, any number between 325,500 and 326,499 would round to 326,000 when rounded to the nearest thousand. This is because the hundreds digit (5 in 325,500) is the point at which the rounding decision changes. Numbers above this have a hundred digits of 5 or more, triggering the round-up, whereas numbers below this have a hundred digits of 4 or less, remaining rounded down.