What addition problem equals the sum of 8?

Answer 1

There are infinitely many possible answers:

4 + 4

or 3.9 + 4.1, 3.8 + 4.2, and so on

or 3.99 + 4.01, 3.98 + 4.02 and so on

and so on with 3, 4, and up to infinitely many decimal digits.

Or 2 + 3 + 3

and each of these can have several decimal digits.

Furthermore, the sums can extend to four, numbers: 2 + 2 + 2 + 2

or five : 1 + 1 + 2 + 2 + 2

or ten: 0.8 + 0.8 + 0.8 + 0. 8 + 0. 8 + 0.8 + 0.8 + 0.8 + 0. 8 + 0. 8

or a million and so on.