\[\boxed{\mathbf{Страница}\mathbf{\ 54}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{189}\mathbf{.}\mathbf{\ }}\]
\[6 \cdot 4 \Longrightarrow 24\ :8 \Longrightarrow \boxed{3}\]
\[9 + 7 \Longrightarrow 16 - 10 \Longrightarrow \boxed{6}\]
\[18\ :3 \Longrightarrow 6 \cdot 9 \Longrightarrow 54\ :6 \Longrightarrow \boxed{9}\]
\[\boxed{\mathbf{190}\mathbf{.}\mathbf{\ }}\]
\[45 - (64\ :8) = 45 - 8 = 37\]
\[(2 \cdot 3) \cdot 3 = 6 \cdot 3 = 18\]
\[(3 \cdot 9) - (54\ :9) = 27 - 6 = 21\]
\[(27\ :3) - (10 - 8) = 9 - 2 = 7\]
\[(6 + 3) + 8 = 9 + 8 = 17\]
\[\boxed{\mathbf{191}\mathbf{.}}\]
\[\boxed{\mathbf{192}\mathbf{.}\mathbf{\ }}\]
\[(32 - 8)\ :3 = 24\ :3 = 8\ (м) -\]
\[ткани\ в\ третьем\ куске.\]
\[Ответ:8\ м.\]
\[\boxed{\mathbf{193}\mathbf{.}}\]
\[4\ дм\ 2\ см < 3\ дм\ 9\ см\]
\[2\ м\ 1\ дм = 21\ дм > 19\ дм\]
\[5\ см\ 4\ мм = 54\ мм\]
\[6\ см\ 8\ мм < 7\ см = 70\ см\]