I did not see anything missing, but there is some writing. I did not see answers given to the exercises, but there may be a couple that I missed? I mostly just saw marks on the first couple lists as shown in the pictures. I think you could still get full use out of this.
I am selling several other Abeka books (most are 6th grade, but not all), and I will combine shipping for items bought at the same time. Link to see my other items:
Keystocreativity