If x = 5, which of these calculations is correct?

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Grades 6, 7 and 8 - Math - Middle School - Algebra - BODMAS Otherwise Known as BIDMAS — practice the complete quiz, review flashcards, or try a random question.

In algebra, the 'O' in BODMAS stands for 'Order' and the 'I' in BIDMAS stands for 'Index'.  'Order' and 'Index' mean the same thing. 


If x = 5, which of these calculations is correct?