Order of Operations

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Bailey Moore

2017. június 10. 16:29

I thought addition came before subtraction. Also, how do you know where to put parentheses when there are none in the equation already? Surprisingly, I think that Order of Operations is one of the hardest things I have learned in math ( I can do way harder math, but not even this!!). I need to understand every single rule about order of operations, so I will not mess up equations a a higher level just because of an order issue.

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Katey Gordon

2017. június 10. 22:36
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Hi Bailey,
There is a trick to remember the order of operations it's called PEDMAS and it goes like this
Parentheses
Exponents
Multiplication/Division
Addition /Subtraction

You work left to right. Now not all equations have this for example

(4+4)-(2+2), You would first work in the parentheses then subtract but you wouldn't have to worry about exponent etc.

The following video explains this well

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

Also the following article shows examples and deeply explains PEDMAS it may be able to help.
https://en.m.wikibooks.org/wiki/Arithmetic/Order_of_Operations

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Order of Operations

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