\[\boxed{\mathbf{483.}}\]
\[\textbf{а)}\ 213 \cdot 3 - 10 = 639 - 10 =\]
\[= 629\]
\[60 \cdot 4 - 200 = 240 - 200 = 40\]
\[600\ :3 - 1 = 200 - 1 = 199\]
\[\textbf{б)}\ 302 \cdot 2 - 180 = 604 - 180 =\]
\[= 424\]
\[900 - 432 \cdot 2 = 900 - 864 = 36\]
\[1000 - 540\ :6 = 1000 - 90 =\]
\[= 910\]