Adding and subtracting integers

A scuba diver dove 20 feet below the surface of the water. He then dove an additional 32 feet. What is the depth of the scuba diver?

Alejandro has $18 dollars in his checking account. He writes a check for $26. What is the balance of his bank account?

Sam has -$15 in her bank account. Elsa has $30. How much do Sam and Elsa have combined?

1 - 8 =

2 - (-5) =

8 + (-2) =

-5 + 3 =

-6 - (-11) =

2 - (-7) =

-10 + 4 =