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In this lesson, we will learn about the order of operations in math. Order of operations, also known as PEMDAS, tells us the correct order to perform calculations in math. At the highest level, we must do what is in parenthesis first. After this, the next highest priority is to do exponents, followed by multiplication and division, then finally addition and subtraction. It is important to perform the multiplication and division from left to right. Similarly, we do the addition and subtraction from left to right. We will practice order of operations by solving many problems step by step. We use order of operations in algebra, trig, calculus, physics, and beyond.