\[\boxed{Страница\ 16.}\]
\[\boxed{\mathbf{3.}}\]
\[92 \cdot 3 = (90 + 2) \cdot 3 =\]
\[= 270 + 6 = 276\]
\[8 \cdot 75 = 8 \cdot (70 + 5) =\]
\[= 560 + 40 = 600\]
\[64\ :4 = 16\]
\[98\ :7 = 14\]
\[90\ :18 = 5\]
\[87\ :29 = 3\]
\[\boxed{\mathbf{4.}}\]
\[1)\ x > 3\]
\[2)\ x < 6\]
\[3)\ x < 5\]
\[\boxed{\mathbf{5.}}\]
\[24\ 680\ :8 + (32\ 587 - 31\ 989) \cdot 40 - 206 \cdot 30 =\]
\[= 20\ 825\]
\[\boxed{\mathbf{6.}}\]
\[Периметр\]
\[Единица\]
\[Уравнение\]
\[Миллиард\]
\[Отрезок\]
\[Тысяча\]
\[Неравенство\]
\[Прямоугольник\]