§ Задание 10
\[\boxed{\mathbf{10.}}\]
\[15 + 5 = 20\]
\[42 + 5 = 47\]
\[53 + 5 = 58\]
\[94 + 5 = 99\]
\[15 - 5 = 10\]
\[36 - 5 = 31\]
\[57 - 5 = 52\]
\[98 - 5 = 93\]
\[\boxed{\mathbf{10.}}\]
\[15 + 5 = 20\]
\[42 + 5 = 47\]
\[53 + 5 = 58\]
\[94 + 5 = 99\]
\[15 - 5 = 10\]
\[36 - 5 = 31\]
\[57 - 5 = 52\]
\[98 - 5 = 93\]