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What is the value of \(8^3 + 12^2\)?

Answer and explanation

Correct answer: 656

Compute the powers first: \(8^3=8\times8\times8=512\) and \(12^2=12\times12=144\). Adding them gives \(512+144=656\). Thus the correct value is 656. A common close distractor (646) results from arithmetic slip — for example miscomputing \(12^2\) or \(8^3\). Exam tip: evaluate each power separately, then add; use simple checks (like units digit or rough estimation) to catch calculation errors.

Related tags

ExponentsOperationsNumber SystemsPowersArithmeticMathematicsClass 9 Mcq

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