The temperature at 12 p.m. wa
 34. The temperature at 12 a m
 was-16. What was the difference
 in the temperatures?
 An elevator was at the 4floor
 It traveled up 18 floors, down 7
 floors, up 6 floors and down 2
 floors. What floor did the elevator
 end up on?
 submarine was traveling at 62
 feet below sea level. It rose 17
 feet, dropped 250 feet, then rose 25
 feet. What was the submarines
 Final position?