If you add up the speed (not the velocity) of the Earth's rotation and revolution the speed of Sol moving in revolution around the Milky Way and the speed of MW how fast are we moving?

Answer 1

The concept is fascinating. But there's one missing piece of vital information that
stands in the way of formulating an answer: 'Moving' relative to what, or to where ?

In fact, the question crumbles into even smaller pieces when you consider that the
speed of Earth's rotation, it's speed of revolution, the speed of the Sun's revolution
within the Milky Way, and the speed of the galaxy itself, are each stated relative to
different references !

Answer 2

I see some problems here.

First, it really doesn't make sense to add speeds. You have to add velocities. Of course, it might be more difficult to find information, in what direction each of these movements is, than just looking up the speeds. But in any case, adding speeds doesn't really give you any useful information.

Second, the speed or velocity of the Milky Way... compared to what, exactly? You need to clarify that. Options include the velocity with respect to the center of mass of the Local Group, or the velocity as measured by the cosmic background radiation.