\[\boxed{\mathbf{Вариант\ 1.}}\]
\[\boxed{\mathbf{1.}}\]
\[308 = 300 + 8\]
\[30\ 806 = 30\ 000 + 800 + 6\]
\[308\ 004 = 300\ 000 + 8000 + 4\]
\[\boxed{\mathbf{2.}}\]
\[1)\ 10\ 000 + 561 = 10\ 561\]
\[703\ 000 + 94 = 703\ 094\]
\[2)\ 73\ 469 + 1 = 73\ 500\]
\[100\ 000 - 1 = 99\ 999\ \]
\[\boxed{\mathbf{3.}}\]
\[800\ 100 > 80\ 010\]
\[218\ 560 < 218\ 650\]
\[85\ 193 < 85\ 319\]
\[254\ 316 > 245\ 316\]
\[\boxed{\mathbf{4.}}\]
\[Увеличить\ в\ 100\ раз:\]
\[49 \Longrightarrow 4900;\]
\[30 \Longrightarrow 3000;\]
\[8000 \Longrightarrow 800\ 000.\]
\[Уменьшить\ в\ 100\ раз:\]
\[700 \Longrightarrow 7;\]
\[3000 \Longrightarrow 30;\]
\[900\ 000 \Longrightarrow 9000.\]
\[\boxed{\mathbf{5.}}\]
\[*9* > 9*\]
\[44 > 444*\]
\[*8* < *\]