Question

What is the change in elevation from 70 below sea level to 40 above sea level

Answer 1

110

Explanation:

70 below sea level is kinda like -70 and 40 above is just... 40. So to get 110 you add 70 to -70 and 40 to the first sum and then add 70 and 40 together. Your sum will be 110!

Hope this helps!