Mnemonic Device:

BODMAS*
 Brackets, Order, Division and Multiplication, Addition and Substraction
Variation:

BIDMAS*
 Brackets, Indices, Division and Multiplication, Addition and Subtraction
Explanation: to remember the Order of Operations
Additional Information: Orders, Indices or Powers are also known as Exponents. Brackets are also known as Parentheses (change the B to a P).
*most common in the UK and Australia
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