These end-chapter q's are too simple compared to the q's that will show up on the actual exam. The q's on the back of both these books are more regurgitive whilst the Step 1 q's are more 2nd or 3rd order q's. Focus on doing Robbin's Review Book which is like over 1,100 q's... these are nice and difficult, if you can do well on these you'll find the Step 1 path q's easy.... at the same time... make sure to do all of the physio, path and pathophy q's on UW.... just drill yourself until it all sticks.
Good luck