34 + 98 + 98 + 87 + 32 = 349
348
9 plus 87 equals 96.
5 + 87 = 92
it equals 406
it is 864
87
The total sum is 87
-1942567
x=27
44 - 9 + 6 + 5 + 4 + 32 + 5 = 87
18 + 70 ie 87
Assuming that there is a "plus" after the second 58, the answer is - the associative property of addition.