Adding and subtracting integer word problems

The low temperature on Monday was  $-1\degree\ C.$  On Tuesday, the low temperature was  $6\degree\ C$  less than the temperature on Monday. What was the low temperature on Tuesday? 

(a)  

Jon and his family visit Turtleback Falls in North Carolina. The top of the waterfall is 20 feet above the river. If the river has a depth of 16 feet, what is the distance from the top of the cliff to the bottom of the river?

(a)  

Jillian invested in a local stock. The chart shows the stock each week in relation to Jillian's initial investment. What was the total change in the stock over the two weeks?

At the beginning of the week, the temperature was  $15\degree.$  During the week, it decreased by  $20\degree.$  What was the temperature by the end of the week?

A scuba diver is at an elevation of 53 feet below sea level. A hiker is at an elevation of 228 feet above sea level.

What is the difference in elevation between the scuba diver and the hiker?

(a)   feet