\[\boxed{\mathbf{1.}\mathbf{16}\mathbf{.\ ОК\ ГДЗ - домашка\ на\ }5}\]
\[\textbf{а)}\ 35,5\ :5 = 7,1;\ \]
\[3,9\ :2 = 1,95;\ \]
\[6,3\ :10 = 0,63;\ \]
\[0,64\ :8 = 0,08;\ \]
\[0,7\ :100 = 0,007.\ \]
\[\textbf{б)}\ 11 \cdot 0,2 = 2,2;\ \]
\[1 \cdot 0,1 = 0,1;\ \]
\[39 \cdot 0,01 = 0,39;\ \]
\[31 \cdot 0,4 = 12,4;\ \]
\[0,5 \cdot 48 = 24.\ \]
\[\textbf{в)}\ 0,7\ :5 = 0,14;\ \]
\[7\ :2 = 3,5;\ \]
\[23,23\ :23 = 1,01;\ \]
\[25,75\ :25 = 1,03;\ \]
\[0,9\ :18 = 0,05.\ \]
\[\textbf{г)}\ 6,7 - 2,3 = 4,4;\ \]
\[6 - 0,02 = 5,98;\ \]
\[3,08 + 0,2 = 3,28;\ \]
\[2,54 + 0,06 = 2,6;\ \]
\[8,2 - 2,2 = 6.\ \ \ \]