My son is also working on 4th grade level. It is aligned with Common Core so you get the typical fuzzy questions. It's the best example of why Common Core is such a bad set of standards for gifted kids. On the one hand you've got confusing multi step questions that really force the child to slow down and think through the problem. But the math, (single digit multiplication in 4th grade, seriously?) is so low level, it's a joke. Common Core math pulls our students down.