Suppose $\vec{u} = \left<-3,1,-3\right>$, $\vec{v} = \left<3,5,0\right>$ and $\vec{w} = \left<-3,2,-1\right>$. Then:

$\vec{u}\cdot \vec{v}$	=
$\vec{u}\cdot \vec{w}$	=
$\vec{v}\cdot \vec{w}$	=
$\vec{v}\cdot \vec{v}$	=
$\vec{u}\cdot \left(\vec{v}+\vec{w}\right)$	=