Prodigy is a fun math website that is aligned to current standards.  

USA Test Prep is used in class and in the home to assess students on their understanding of the standard.  These assessments help to prepare students for the benchmarks and milestones, and are usually counted as test grade.

I-Ready is used by RCSS to assess your child's academic growth and meet them where they are to reach academic goals.  

Students complete diagnostic test, growth checks and lessons on this platform. 

Khan Academy is a great study site that provides videos prior to each lesson.  I use this site for tutoring to reinforce the standards beyond the classroom, and to ensure that students are having the opportunity to study the lessons and understand them.