Add -18 and five what's the answer?

The sum of -18 and 5 is -13.

To add -18 and 5, follow these steps:

Step 1: Write down the two numbers: -18 and 5.

Step 2: Use the rule that adding a positive number to a negative number is the same as subtracting the positive number from the negative number.

Step 3: Subtract 5 from -18.
-18 - 5 = -23

So, the answer to -18 + 5 is -23.