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 $\left(\frac{3}{4}\right)^2\ +\ \left(27\div9\right)$  

(a)  

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 $3^2\ -\ \left(\frac{2}{5}\times\frac{10}{2}\right)$  

(a)  

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 $\left(\frac{16}{2}\times\frac{6}{2}\right)\div2^2$  

(a)  

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 $\left(\frac{3\times6}{2}\right)\div\frac{6}{2}$  

(a)  

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 $\left(\frac{3}{7}\times\frac{14}{6}\right)+\frac{25}{5}$  

(a)  

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 $\left(\frac{3}{4}\times\frac{4}{1}\right)\times\frac{2}{3}$  

(a)  

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 $\left(\frac{24}{3}\right)^2\ -\ \left(\frac{6}{1}\times\frac{3}{3}\right)$  

(a)