Adding and subtracting rational numbers

You are flying in a helicopter 150 feet above sea level. You look down and see a shark swimming 15 feet below the surface of the water. How far away are you from the shark?

• -135 feet

• 165 feet

• 135 feet

What is the distance between a bird flying at an altitude of 25 feet, and a fish swimming at an altitude of -32 feet?

• 7 feet
• -7 feet
• 57 feet
• not here

Hank is working in a silver mine 10 feet

below the surface. He descends until he

reaches a point 57 feet below the surface.

How many feet does Hank descend?

(a)  

The floor of an elevator in a building is 30 feet above ground level. It travels down to the lower level of the building, where the floor is 10 feet below ground level. What distance has the elevator's floor traveled?

• 40 feet

• 20 feet

• 300 feet

• 31 feet

A deep-sea diver descended from a rock that is 45 feet below sea level to a coral reef that is 88 feet below sea level. How far did the diver descend from the rock to the coral reef?

• 43 feet
• 33 feet
• 133 feet
• 53 feet

The highest point on Earth has an elevation of 8850 meters. The lowest point has an elevation of -11,033 meters. What is the difference between the highest and lowest point?

(a)  

The lowest recorded temperature in Dreamville is -3 $\degree$   .    The lowest recorded temperature in Whoopsiedaizy is -14 $\degree$  .  What is the difference in the lowest recorded temperatures of the two towns?

• -17 degrees

• -11 degrees

• 11 degrees

• 17 degrees 

The elevation of Mt. Everest is 29,028 ft and the elevation of the Dead Sea is -1,312 feet. Find the range in these elevations.

(a)  

Distance from -7 to -4

• 11

• -11

• 3

• -3

On a nice summer day in the Mirror Dimension, the temperatures can go from 100 degrees Celsius down to -154 degrees. What is the range of temperatures?

• 254 Degrees

• 54 Degrees

• 122 Degrees

• 15,400 Degrees