$ (-81) \div (-9) = $

$\dfrac{34}{2} = $

$(-0,8) \div2 = $

$\dfrac{10,2}{-3} = $

$\dfrac{5,2}{-4} = $

$\dfrac{-99}{9} = $

$\dfrac{-28}{2} = $

$ \dfrac{-70}{-5} = $

$ \dfrac{-48}{-3} = $

$\dfrac{63}{-7} = $