2nd grade subtraction rapid test Scientist quiz game - Rapids tests are great ways of instantly checking the ability of children in different math skills. Although they are easy to solve, timing is an important aspect to consider. Children have to quickly solve a number of subtraction problems and choose the correct answer among a set of choices. This rapid subtraction test can be taken both as a homeschooling warm up or a supplementary homework practice for students. Teachers and parents have full access to this resource at all times and can be assessed on PC and any mobile device connected to the internet. Have fun learning online and in the classroom. This is an interactive online math quiz for 1st, 2nd, 3rd, and 4th graders who need extra practice.