§ Задание 51
\[\boxed{\mathbf{2}\mathbf{.}\mathbf{51}}\]
\[\textbf{а)}\ 8\ 007\ 004 =\]
\[= 8\ 000\ 000 + 7000 + 4\]
\[\textbf{б)}\ 222\ 222 =\]

\[\boxed{\mathbf{2}\mathbf{.}\mathbf{51}}\]
\[\textbf{а)}\ 8\ 007\ 004 =\]
\[= 8\ 000\ 000 + 7000 + 4\]
\[\textbf{б)}\ 222\ 222 =\]
