Answer:
Commutative property of addition
Explanation:
A set S is said to be commutative under addition if :
[tex]\begin{gathered} \forall a,b\in S \\ a+b=b+a \end{gathered}[/tex]Thus, given the operation:
[tex]1.8+7.3=7.3+1.8[/tex]The property being illstarated is the commutative property of addition.
What this means is that when adding two numbers or variables, the order of the placement of the numbers/variables does not matter as the same resut will be obtained.