\[Стр.\ 86.\]
\[\boxed{\mathbf{6.}}\]
\[\textbf{а)}\ 34,781\ :0,1 = 347,81\]
\[\textbf{б)}\ 9,345\ :0,01 = 934,5\]
\[\textbf{в)}\ 0,0958\ :0,001 = 95,8\]
\[\textbf{г)}\ 1,04\ :0,0001 = 10\ 400\]
\[\textbf{д)}\ 0,507\ :0,01 = 50,7\]
\[\textbf{е)}\ 0,005\ :0,001 = 5\]
\[\textbf{ж)}\ 3,856\ :0,0001 = 38\ 560\]
\[\textbf{з)}\ 357,2\ :0,01 = 35\ 720\]
\[\boxed{\mathbf{7.}}\]
\[\textbf{а)}\ 3,44 + (0,9\ :0,45)^{2} - 2,4 \cdot 0,6 =\]
\[= 6\]
\[0,9\ :0,45 = 90\ :45 = 2\]
\[2^{2} = 4\]
\[2,4 \cdot 0,6 = 1,44\]
\[3,44 + 4 - 1,44 = 6\]
\[\textbf{б)}\ (0,7\ :0,35)^{2} - 4,3 \cdot 0,7 + 2,56 =\]
\[= 3,55\]
\[0,7\ :0,35 = 70\ :35 = 2\]
\[2^{2} = 4\]
\[4,3 \cdot 0,7 = 3,01\]
\[4 - 3,01 + 2,56 = 6,56 - 3,01 =\]
\[= 3,55\]