In the given sum of matrices we need to add 0 to 0.
-5.5 to 5.5.
6 to -6
19.4 to -19.4
0 to 0 and
0 to 0.
We can see in the sums of -5.5 to 5.5, 6 to -6 and 19.4 to -19.4 we have equal numbers in opposite in signs.
Those are additive inverses of each other.
Therefore, we need to apply " Additive inverse property".
In the given option we would choose 3rd option " inverse property".
