New no return Joseph RayRay’s Arithmetic Series – 8 Volume Set – Story Problem Math Books. Help Your Children Learn Math and Basic Arithmetic Using a Principled Approach. Learn With Practical Applications and Story Problems. This set includes: Ray’s Primary Arithmetic Ray’s Intellectual Arithmetic Ray’s Practical Arithmetic Key to Ray’s Arithmetics: Primary, Intellectual, and Practical Ray’s Test Examples in Arithmetic Ray’s Higher Arithmetic Key to Ray’s Higher Arithmetic Parent-Teacher Guide for Ray’s Arithmetics by Ruth Beechick