I am still checking out this site. It has online math problems for K-12. It does take some preparation by the teacher to setup a classroom with names. It starts off by giving a pre-assessment test to place the child. That is as far as I got. I'm taking the test to see where it places me as a 6th grader then I will see how and what the problems look like. It sent me (the teacher) an email stating my progress (the student). By the way, it's free.
https://www.xtramath.org/
