\[\boxed{\mathbf{889\ (889)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\textbf{а)}\ | - 3| = 3\]
\[|4| = 4\]
\[|70| = 70\]
\[| - 62| = 62\]
\[| - 100| = 100\]
\[|360| = 360\]
\[\textbf{б)}\ | - 3,9| = 3,9\]
\[|3,9| = 3,9\]
\[\left| \frac{1}{2} \right| = \frac{1}{2}\]
\[\left| - \frac{1}{2} \right| = \frac{1}{2}\]
\[|3,13| = 3,13\]
\[| - 3,13| = 3,13\]