§ Задание 15
\[\boxed{\mathbf{15.}}\]
\[44 - 3 = 41\]
\[44 - 30 = 14\]
\[66 - 2 = 64\]
\[66 - 20 = 46\]
\[77 - 5 = 72\]
\[77 - 50 = 25\]
\[99 - 8 = 91\]
\[99 - 80 = 19\]
\[\boxed{\mathbf{15.}}\]
\[44 - 3 = 41\]
\[44 - 30 = 14\]
\[66 - 2 = 64\]
\[66 - 20 = 46\]
\[77 - 5 = 72\]
\[77 - 50 = 25\]
\[99 - 8 = 91\]
\[99 - 80 = 19\]