1)

$\frac{96.54-89.63}{96.54+89.63}+\frac{965.4-896.3}{9.654+8.963}=?$

A) $10^{-2}$

B) $10^{2}$

C) $10^{-1}$

D) $10^{1}$

E) None of these

$\frac{96.54-89.63}{96.54+89.63}\times\frac{9.654+8.963}{965.4-896.3}=\frac{96.54-89.63}{965.4-896.3}\times\frac{9.654+8.963}{96.54+89.63}$
$=\frac{96.54-89.63}{10(96.54-89.63)}\times\frac{96.54+89.63}{10(96.54+89.63)}$
$=\frac{1}{10}\times\frac{1}{10}=\frac{1}{100}=10^{-2}$