\[\boxed{\mathbf{Страница\ 55.}еуроки - ответы\ на\ пятёрку}\]
\[\boxed{\mathbf{2.1.}}\]
\[\textbf{а)}\ 768,\ 384,\ 192,\ 96,\ 48,\ 24.\]
\[\textbf{б)}\ 1\frac{1}{2};2\frac{2}{6};3\frac{4}{18};4\frac{8}{54};5\frac{16}{162};6\frac{32}{486}.\]
\[\boxed{\mathbf{2.2.}}\]
\[\textbf{а)}\ 360\ 098 =\]
\[= 300\ 000 + 60\ 000 + 90 + 8\]
\[\textbf{б)}\ 5\ 400\ 207 =\]
\[5\ 000\ 000 + 400\ 000 + 200 + 7\]
\[\boxed{\mathbf{2.3.}}\]
\[\textbf{а)}\ 960\]
\[\textbf{б)}\ 30\ 500\]
\[\textbf{в)}\ 420\ 000\]
\[\textbf{г)}\ 1\ 508\ 000\ 000\]
\[\boxed{\mathbf{2.4.}}\]
\[\textbf{а)}\ 80\ 739\]
\[\textbf{б)}\ 10\ 400\ 056\]
\[\boxed{\mathbf{2.5.}}\]
\[\textbf{а)}\ 9999 < 20\ 000\]
\[\textbf{б)}\ 6\ 325\ 104 > 325\ 096\]
\[\boxed{\mathbf{2.6.}}\]
\[\textbf{а)}\ 2\ м\ 5\ мм > 48\ см\]
\[2005\ мм - 480\ мм = 1525\ мм.\]
\[\textbf{б)}\ 16\ га\ 4\ а > 24\ 392\ м^{2}\]
\[160\ 400\ м^{2} - 24\ 392\ м^{2} =\]
\[= 136\ 008\ м^{2}.\]
\[\boxed{\mathbf{2.7.}}\]
\[\textbf{а)}\ 5\ мин > 50\ с\]
\[300\ с\ :50\ с = 6\ раз.\]
\[\textbf{б)}\ 36\ т > 3600\ кг\]
\[360\ ц\ :36\ ц = 10\ раз.\]
\[\boxed{\mathbf{3.}}\]
\[\textbf{а)}*\ = 7;8;9.\]
\[\textbf{б)}*\ = 0;1;2;3;4.\]
\[\textbf{в)}*\ = 2;3;4;5;6;7.\]