1. Round the number $54,789$ to the nearest thousand. The result is ___.
2. To round $678,142$ to the nearest hundred thousand, you must first determine it is between which two numbers?
3. A city's population is exactly $350,000$. Rounded to the nearest hundred thousand, the population is ___.
4. A company manufactured $243,105$ widgets. When rounded to the nearest ten thousand, how many widgets did they make?
5. A number is exactly at the midpoint between $45,000$ and $46,000$. When rounded to the nearest thousand, what is the number? ___
6. A website received 48,715 visitors in one day. Round this number to the nearest thousand. ___
7. Which of the following numbers becomes 400,000 when rounded to the nearest hundred thousand?
8. A charity raised 129,512 dollars and another raised 94,380 dollars. Estimate the difference by first rounding each amount to the nearest ten thousand. ___
9. A concert attendance was reported as 50,000 after being rounded to the nearest thousand. What is the largest possible number of people that could have attended?
10. What is the result of rounding the number 275,000 to the nearest ten thousand? ___