Spicy Addition and Subtraction

Difficulty: spicy

Longer and more challenging addition and subtraction of both positive and negative numbers and decimal numbers. Remember to keep the decimal points lined up and that subtracting a negative is the same as adding.

For example
What is -9 - -14?
Subtracting a negative is the same as adding so the - - becomes a +
This becomes -9 +14
The answer is 5