We have that a number fact is an equation made up of three different numbers.
We can say that:
Addition facts:
3.43 + 5.5 = 8.93
And also that:
5.5 + 3.43 = 8.93
(In this case, we have the commutative property of the addition).
Subtraction facts:
8.93 - 3.43 = 5.5
8.93 - 5.5 = 3.43