ГДЗ по математике 6 класс Мерзляк Решаем устно параграф 29

\[\boxed{\mathbf{Решаем}\mathbf{\ }\mathbf{устно}\mathbf{\ }\mathbf{параграф}\mathbf{\ }\mathbf{29}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

\[\boxed{\mathbf{1.}}\]

\[1)\ 36,6 + 2,3 = 38,9{^\circ}\]

\[2)\ 38,9 - 1,8 = 37,1{^\circ}\]

\[\boxed{\mathbf{2.}}\]

\[1)\frac{1}{3}x = 5\]

\[x = 5 \cdot 3\]

\[x = 15.\]

\[2)\ 3x = 5\]

\[x = 5\ :3\]

\[x = \frac{5}{3} = 1\frac{2}{3}.\]

\[3)\ 3x = \frac{1}{5}\]

\[x = \frac{1}{5 \cdot 3}\]

\[x = \frac{1}{15}.\]

\[4)\frac{1}{3}x = \frac{1}{5}\]

\[x = \frac{1 \cdot 3}{5 \cdot 1}\]

\[x = \frac{3}{5}.\]

\[\boxed{\mathbf{3.}}\]

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

\[4 + 3 + 2 + 1 = 10\ отрезков.\]