Question

can you find the sum [5.5 + (-2.3)] + (-5.5 + 2.3) without preforming any additions?

Answer 1

Yes

(5.5+(-2.3))+(-3.2)
3.2+(-3.2)

The answer would be 0 with addition but you said with no addition so 3.2+(-3.2) is the answer.