This course provides students with the necessary mathematical tools needed for graduate courses in microeconomics, macroeconomics, econometrics, and finance, and prepares the students for reading classic texts such as Varian's Microeconomic Analysis without getting bogged down in mathematical details. The first third of the course covers matrix algebra and its use in solving systems of equations and equilibrium points, as well as probability and discrete probability distributions. The central portion focuses on interpretation and applications of one and two variable calculus including graphical analysis, derivatives and integrals, and optimization of functions. The final portion provides an introduction to different and differential equations. The focus will be on conceptual understanding, problem solving, and developing familiarity with mathematical notations and arguments. Prerequisites: Students should have some experience with Calculus.