Measure 3: Instead of crossing four over onto the C, I just use my thumb and then move my had onto the F-B. Similarly in the left hand, I use 1-5 on both the eighth notes on the second beat. That's only because I don't do well with 2-5 in the left hand. I think that's a good fingering because the hand-movement would lead to a detache feel, emphasizing the drop roll on beats 3 and 4. Measure 10: I think the book's fingering is fine, or at least it was for me.
Were these scanned from a Peters edition book?
Topic: Best fingering for Mozart Sonata 