DAT Math Destroyer 2012 vs 2015 edition

[WhiteningStrike]

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Hi everyone,

I am taking the DAT in October of this year and wondering about the changes to the QR section. I am currently using the 2012 edition of the DAT Math Destroyer. Would the 2012 edition suffice for the changes being added to the QR section or should I purchase the 2015 edition of the destroyer?

Thanks.