$10^{3} \times 10^{5} = 10$

$\dfrac{10^{5}}{10^{6}} = 10$

$\left(10^{-2}\right)^{-2} = 10$

$\dfrac{10^{-4}}{10^{-3}} = 10$

$\dfrac{10^{-3}}{10^{2}\times 10^{4}} = 10$

$\dfrac{10^{1} \times 10^{-4}}{10^{1}} = 10$

$\dfrac{10^{-1} \times 10^{5}}{10^{-3}\times 10^{-4}} = 10$

$\dfrac{\left(10^{4}\right)^{1}}{10^{2}} = 10$

$\dfrac{10^{-3} \times 10^{-2}}{10^{-5}} = 10$

$10^{-5} \times 10^{5} \times 10^{6} = 10$