\[Страница\ 46.\]
\[\boxed{\mathbf{73.}}\]
\[6 \cdot 3 = 18\]
\[18\ :6 = 3\]
\[18\ :3 = 6\]
\[4 \cdot 9 = 36\]
\[36\ :4 = 9\]
\[36\ :9 = 4\]
\[8 \cdot 5 = 40\]
\[40\ :8 = 5\]
\[40\ :5 = 8\]
\[\boxed{\mathbf{74.}}\]
\[\boxed{\mathbf{75.}}\]
\[Уменьшаемое\] | \[20\] | \[30\] | \[80\] | \[45\] | \[70\] | \[96\] | \[50\] | \[16\] | \[44\] |
---|---|---|---|---|---|---|---|---|---|
\[Вычитаемое\] | \[10\] | \[10\] | \[50\] | \[40\] | \[20\] | \[70\] | \[10\] | \[7\] | \[4\] |
\[Разность\] | \[10\] | \[20\] | \[30\] | \[5\] | \[50\] | \[26\] | \[40\] | \[9\] | \[40\] |
\[\boxed{\mathbf{76.}}\]
\[3 \cdot 4 = 12\ (м) - ткани\ на\ 4\]
\[\ платья.\]
\[Ответ:12\ м.\]