What is "added up"

Usage examples of "added up".

Actually they were rather small changes, but they added up to a different woman, handsome rather than beautiful but not at all worn, a woman who was proud, even regal.

Within the wrappings that bound her she felt cold as she added up a sum and found the answer was probably complete disaster.

And again the woman anxiously and actively fingered the mattress and added up in her mind and bargained with the old, unclean man.

There were things about this entire operation that never had added up to his satisfaction, and his employer’.

There were things about this entire operation that never had added up to his satisfaction, and his employer's apparent lack of concern over the loss of his entire lab complex was one more puzzle.

They added up to a huge compendium of meaningless analogies, which did not help to explain things, but only distorted perception of them.

I tried to assign some broader meaning to the words, but nothing really added up.