1. Mr. Nelsoncleaned 25 of the 45 buses. How many are still to be cleaned?   2. It is possible to accommodate 161 cars in a parking lot. If 90 cars are already parked, how many more cars can fit?   3. A milk van started with 372 bottles of milk. It delivered 36 bottles. How many bottles are still to be delivered?   4. John has to repair 47 cabs. He has repaired 23. How many more does he have to repair?   5. There are 214 passengers in a train. If78 people get off at the station, how many passengers are still there in the train?