1. Mr. Stewart drove 13 miles in his new car on Wednesday and 38 miles on Thursday.  How many miles did he drive in these two days?   2. There are 8 vans and 68 trucks in a parking lot. How many vehicles are there in the parking lot?   3. There are 10 men and 25 women in an aeroplane. How many passengers are there altogether?   4. Gary is a mechanic. He repaired 39 buses and 32 cabs last month. How many vehicles did he repair altogether?   5. Mrs. Baker used 7 gallons of fuel last week. She used 6 gallons this week. How many gallons of fuel were consumed in the two weeks?