Решебник по математике 6 класс Ерина Никольский рабочая тетрадь Часть 1, 2 Часть 1 | Страница 83

\[\mathbf{Страница\ 83.}\]

\[\boxed{\mathbf{4.}}\]

\[Числа\ в\ порядке\ убывания:\]

\[- \frac{1}{5};\ - \frac{2}{5};\ - \frac{3}{5};\ - \frac{9}{5};\ - 2;\ - \frac{12}{5}.\]

\[\boxed{\mathbf{5.}}\]

\[Числа\ в\ порядке\ возрастания:\]

\[- 2;\ - 1;\ - \frac{9}{10};\ - \frac{7}{10};\ - \frac{6}{10};\ \ \]

\[- \frac{5}{10};\ - \frac{4}{10}; - \frac{3}{10};\ - \frac{2}{10};\ - \frac{1}{10}.\]

\[\boxed{\mathbf{6.}}\]

\[- 2 < - 1\frac{1}{2};\ - 1\frac{3}{4};\ - 1;\ - \frac{1}{3}; - \frac{5}{9} < 0\]

\[0 < 0,1;0,3;0,4;0,45;0,7 < 1\]

\[- 2 < - 1,9;\ - 1,8;\ - 1,5;\ - 1,3;\ - 1,2 < - 1\]

\[\boxed{\mathbf{7.}}\]

\[\textbf{а)} - \frac{27}{31};\ - \frac{26}{31};\ - \frac{15}{31};\ - \frac{14}{31};\ \]

\[\ - \frac{13}{31};\ - \frac{12}{31}; - \frac{5}{31};\ - \frac{4}{31};\]

\[\ - \frac{3}{31};\ - \frac{2}{31}.\]

\[\textbf{б)} - \frac{5}{7} = - \frac{15}{21};\ \ - \frac{1}{7} = - \frac{3}{21}\]

\[- \frac{14}{21};\ - \frac{13}{21};\ - \frac{12}{21};\ - \frac{11}{21};\ - \frac{10}{21};\ \]

\[- \frac{9}{21};\ - \frac{8}{21};\ - \frac{7}{21};\ - \frac{6}{21};\ - \frac{5}{21}.\]

\[\boxed{\mathbf{8.}}\]

\[= 1001 + 209 - 1001 = 209\]

\[1668 - 1650 = 18\]

\[91 \cdot 11 = 1001\]

\[\textbf{б)}\ \]

\[14\ 800 - 14\ 746 = 54\]

\[5454\ :54 = 101\]

\[11\ 211 - 101 = 11\ 110\]

\[11\ 110 + 8890 = 20\ 000\]