I just finished putting together my common core math assessment packet covering all of the second grade math standards! I made it really helpful for teaching who are incorporating the standards in their classrooms by adding checklists, assessment criteria and answer keys. In total there are 155 pages (instructions, criteria, checklists, title pages/posters, answer keys) with over 85 pages of assessments and 380+ math questions covering the four sets of standards: Operations & Algebraic Thinking; Number & Operations in Base Ten; Measurement & Data; and Geometry. I hope you find this packet useful in your own classroom.
Check it out here: Common Core Math Assessments (ALL STANDARDS PACK) Grade 2
I also offer each of the four sets of standards individually on my TpT store.