This GOOGLE FORM resource contains digital task cards with rounding problems. There are links to TWO Google forms, one for rounding to the nearest 10 and the other to the nearest 100. I did not set this up as a multiple choice quiz but rather one where they have to type the correct answer. This makes an excellent formative assessment!
You do not need Google Classroom to use this resource! The links provided in this product will enable you access to the google form. Then you can give your students the link or embed code to the google form to fill out. This is set up as a self-checking quiz. Students will be able to see how many questions they missed.