Rounding and Order of Operations Used in Significant Figures

We'll cover all the significant figure rules, how to round sig figs, and how to solve chemistry questions that mix math operations together. This is a great review of order of operations (PEMDAS) and how math is used in Chemistry.

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[cannibalitic]

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[peves-]

In actual order of operations it doesn't matter if you do Multiplication first or division first, You should still come to the same answer. This also applies to Addition and subtraction. which is why some people say BEDMAS, while others say PEMDAS. It's the same result. You can flip the order around and still get the same outcome, but this only applies to MD or DM being in the middle and AS or SA being last. What I'm trying to say about the MD and AS is that those don't have to go from left to right although we are very consistently reminded in this video that it must go left to right when really it doesn't. it's Brackets, Exponents, M or D (If M was chosen you do D next and vise versa), A or S (If A was chosen you do S next and vise versa).