Решебник по математике 5 класс Мерзляк ФГОС Задание 1441

\[\boxed{\mathbf{1441}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ (327 \cdot 84 + 207\ 673)\ :47 =\]

\[= 5003\]

\[2)\ (924 \cdot 93 + 30\ 271)\ :29 =\]

\[= 4007\]

\[3)\ 61 - (1428\ :136 + 4,3) \cdot 3,4 =\]

\[= 10,68\]

\[4)\ 40 - (2550\ :204 - 6,9) \cdot 6,7 =\]

\[= 2,48\]

\[7)\ \left( 2,04 - 1\frac{1}{4} \right)\ :\frac{1}{20} =\]

\[= (2,04 - 1,25) \cdot 20 = 15,8\]

\[8)\ \left( 3,42 - 2\frac{5}{8} \right)\ :\frac{1}{50} =\]

\[= (3,42 - 2,625) \cdot 50 = 39,75\]

\[11)\ \frac{5}{8} \cdot 2\frac{2}{3} - \frac{5}{6}\ :1\frac{7}{8} + 4\frac{1}{6}\ :5 =\]

\[= \frac{5}{8} \cdot \frac{8}{3} - \frac{5}{6}\ :\frac{15}{8} + \frac{25}{6} \cdot \frac{1}{5} =\]

\[= \frac{5^{\backslash 2}}{3} - \frac{5}{6} \cdot \frac{8}{15} + \frac{5}{6} =\]

\[= \frac{10}{6} + \frac{5}{6} - \frac{4}{9} = \frac{15}{6} - \frac{4}{9} =\]

\[= \frac{5^{\backslash 9}}{2} - \frac{4^{\backslash 2}}{9} = \frac{45}{18} - \frac{8}{18} = \frac{37}{18} =\]

\[= 2\frac{1}{18}\]

\[12)\ \left( 4\frac{1^{\backslash 5}}{9} - 3\frac{4^{\backslash 3}}{15} \right) \cdot 1\frac{11}{19} - 1\frac{5}{7}\ :2\frac{2}{7} =\]

\[= \left( 4\frac{5}{45} - 3\frac{12}{45} \right) \cdot \frac{30}{19} - \frac{12}{7}\ :\frac{16}{7} =\]

\[= \left( 3\frac{50}{45} - 3\frac{12}{45} \right) \cdot \frac{30}{19} - \frac{12}{7} \cdot \frac{7}{16} =\]

\[= \frac{38}{45} \cdot \frac{30}{19} - \frac{3}{4} = \frac{2 \cdot 2}{5 \cdot 1} - \frac{3}{4} =\]

\[= \frac{4^{\backslash 4}}{5} - \frac{3^{\backslash 5}}{4} = \frac{16}{20} - \frac{15}{20} = \frac{1}{20} =\]

\[= 0,05\]