\[\boxed{\mathbf{544\ (544).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 0,29 + \frac{6}{25} = 0,29 + \frac{24}{100} =\]
\[= 0,29 + 0,24 = 0,53\]
\[2)\ 4\frac{5}{8} - 3,94 =\]
\[= 4\frac{5 \cdot 125}{8 \cdot 125} - 3,94 =\]
\[= 4\ \frac{625}{1000} - 3,94 =\]
\[= 4,625 - 3,94 = 0,685\]
\[3)\ 8,22 - 4\frac{7}{50} = 8,22 - 4\frac{14}{100} =\]
\[= 8,22 - 4,14 = 4,08\]
\[4)\ 15,63 + 1\frac{9}{16} =\]
\[= 15,63 + 1,5625 = 17,1925\]