1. Mr. Brown drove 37 miles in his new car on Thursday and 15 miles on Monday.  How many miles did he drive in these two days?   2. There are 5 cars and 39 trucks in a parking lot. How many vehicles are there in the parking lot?   3. There are 25 men and 8 women in an aeroplane. How many passengers are there altogether?   4. Graham is a mechanic. He repaired 18 vans and 26 buses last month. How many vehicles did he repair altogether?   5. Mrs. Smith used 5 gallons of fuel last week. She used 3 gallons this week. How many gallons of fuel were consumed in the two weeks?