These are a set of ten questions for each standard (at least 40 in all) for Number System 6.NS.1-4. They can be used as short quizzes, quick checks, centers, homework sheets that are all common core aligned.
Questions for Division of Fractions 6.NS.1
Questions for Division of Whole Numbers 6.NS.2
Questions for Decimals 6.NS.3
Questions for GCF, LCM and Distributive Property 6.NS.4