$\left(10^{-6}\right)^{2} = 10$

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

$\dfrac{10^{5}}{10^{2}} = 10$

$\dfrac{10^{-3}}{10^{-7}} = 10$

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

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

$\dfrac{\left(10^{5}\right)^{1}}{10^{-3}} = 10$

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

$\dfrac{10^{5} \times 10^{-2}}{10^{4}} = 10$

$10^{-7} \times 10^{6} \times 10^{2} = 10$