Mrs. Guthrie is riding a roller coaster which started at ground level. It ascends to a height of 125 feet. It then descends 95 feet. What is the height of the roller coaster after the first descent?

Mt Everest, the highest elevation in Asia is 29,028 feet above sea level. The Dead Sea, the lowest elevation, is 1,312 feet below sea level. What is the difference between these two elevations?

Mrs. Pinney is investigating the habitat of various animals. She starts by scuba diving on the reefs of Florida. She dives to a depth of 30 feet. The next day she climbs to the top of Mount Mitchell at an elevation of 6,683 feet. What is her change in elevation?

The highest recorded temperature on Earth is 136 degrees Fahrenheit. The lowest is -129 degrees Fahrenheit. What is the difference between the highest and lowest temperatures on Earth?