\[\boxed{\mathbf{531}\mathbf{.}}\]
\[= \sin\frac{\pi}{3} - \cos\left( - \frac{\pi}{2} \right) - tg\frac{\pi}{3} =\]
\[= \frac{\sqrt{3}}{2} - \cos\frac{\pi}{2} - \sqrt{3} =\]
\[= \frac{\sqrt{3}}{2} - 0 - \frac{2\sqrt{3}}{2} = - \frac{\sqrt{3}}{2}\]
\[= \sin\pi - 2\cos\frac{\pi}{3} - tg\left( - \frac{\pi}{4} \right) =\]
\[= 0 - 2 \bullet \frac{1}{2} + tg\frac{\pi}{4} = - 1 + 1 = 0\]
\[= - 1 - 2 \bullet \frac{1}{2} + 1 = - 1\]