Quick Centers and Stations for Third Grade Common Core Common Core Standard ccss.math.content.3.oa.a.4 Determine the unknown whole number in a multiplication or division equation relating three whole numbers. Example: 5x_=35 Introduction These stations are designed for quick set up and use as a specific station or center. They can be used as additional material or differentiated instruction. You may make additional copies of these materials as needed. Station A (Multiplication) (see other stations for other steps in the standard)