Math Reasoning Inventory helps teachers find out what your students really understand about math. It focuses on students' strategies, understandings, and misconceptions. Teachers can learn how students respond to questions to standards. (MRI) is an online formative assessment tool designed to make teachers' classroom instruction more effective. An instant report can be used to inform instruction, monitor progress, and identify students who would benefit from intervention and communicate with parents. The MRI interview reveals strategies to students that reason with whole numbers, decimals, and fractions.
There are multiple levels that you can sign-up for the first is free. It also allows up to 160 individual students you can use it with. Here is the link: https://mathreasoninginventory.com/Home/Index