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Intermediate November 2019 Unit 1 Q15

WJECIntermediateCurrent spec3 marksIndicesUsing a Calculator / BIDMAS

15. Circle the correct answer for each of the following.

(a) \(81 =\) [1]

\(3^3\)   \(9^3\)   \(9^4\)   \(18^2\)   \(3^4\)

(b) \(2{\cdot}1^5 =\) [1]

32·5   10·5   40·84101   30·84101   32·1

(c) \((12{\cdot}96)^{\frac{1}{2}} =\) [1]

6·48   3·6   4·32   3·3   2·16