1. Mr. Allen drove 137 miles in his new car on Sunday and 115 miles on Tuesday. How many miles did he drive in these two days?   2. There are 73 cabs and 42 buses in a parking lot. How many vehicles are there in the parking lot?   3. There are 51 men and 77 women in an aeroplane. How many passengers are there altogether?   4. Warren is a mechanic. He repaired 49 cars and 77 trucks last month. How many vehicles did he repair altogether?   5. Mr. Smith used 53 gallons of fuel last month. He used 35 gallons this month. How many gallons of fuel were consumed in the two months?