Addition: What is ⁸8888⁸888888((((888888+999999999999999

The given expression appears to be an attempt to represent a very large number followed by a decimal point and then more numbers. However, it’s important to note that mathematical operations should follow a clear format for proper evaluation. The way it’s written, it’s not clear if the 8s before the decimal point are meant to be multiplied or if the entire number is a single digit repeated.

Assuming that the “888888” is meant to be a single digit (which would be 8), and the “+999999999999999” is adding the digit 9 to the previous number, the expression simplifies to:

8 + 999999999999999

However, since the number of 9s is infinite, this would result in an infinite sum. In reality, mathematical operations cannot be performed on infinite quantities without further context or clarification. If you meant to add the digit 8 an infinite number of times or perform a different calculation, please provide a clear mathematical expression or problem setup.