The sample on p.10 is from exercise 3 while the sample on p. 64 is from exercise 6. So everything is different. The rhythm groupings assigned for each exercise are for all its variations. Is there a specific reason why you chose Exercise 1? It is the only exercise with a 4 note rhythm grouping and probably the most limited one due to the limited amount of options available.
By the way, if you want to do these on your own, that’s fine, but I strongly recommend that you do them under my supervision through Skype lessons as I will otherwise not be able to help you. At least to start out. There is too much room for misunderstanding due to a lack of more detailed interaction/feedback on both parts…