11-02-2016
Mathematics

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Are these expressions correct?

Are these expressions correct class=

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NickEnglish15 NickEnglish15

11-02-2016

All of those expressions are correct. 9 looks tricky, (11-8)Cubed -2x6. 11-8=3 and 3cubed = 3x3x3= 27. 2x6= 12. You do the brackets, indices and multiplication first becuase of BIDMAS (the order of solving). So to finish, 27-12= 15 your answer.

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