ALL Unit Lessons with K12 ISP Math 08 have math practice problems (Extended Problems) but NO answers. What good are practice problems for my kids if there is no answer to see if they've got it right or wrong. This is a poorly revamped program for this year. The person(s) who did the redesign were careless and inattentive to a job that affects all ISP children who use this course. Shame on you and your understanding of the concepts of learning to do math correctly. User's recommendation: If you want your young children to learn good math through practice, go elsewhere.