1. A warehouse had 81,432 boxes. After a shipment, 27,651 boxes remained. How many boxes were shipped out? ___ boxes. (include comma)
2. What is the difference between 354,162 and 78,537?
3. Calculate the difference: $70,345 - 12,867 = \_\_\_$ (include comma)
4. A factory produced 52,143 items. If 34,258 items were sold, how many items remain in stock?
5. Find the result of $8,135 - 4,769$. The result is ___. (include comma)
6. A city's population was 725,314. After some people moved away, the population was 486,755. How many people moved? ___ people. (include comma)
7. When solving $5,214 - 1,385$, what is the digit in the hundreds place of 5,214 after regrouping to subtract the tens digit?
8. A video game high score is 401,200 points. The second-place score is 158,450 points. What is the difference between the scores? ___ points. (include comma)
9. What is the correct result of $91,254 - 6,876$?
10. Calculate the difference: $473 - 256 = \_\_\_$.