\[\boxed{\mathbf{1.}}\]
| \[\mathbf{\text{XIX}}\] | \[\mathbf{\text{XVI}}\] | \[\mathbf{\text{XXVII}}\] | \[\mathbf{\text{XXXIV}}\] | \[\mathbf{\text{XL}}\] | \[\mathbf{\text{LVII}}\] | \[\mathbf{\text{LXV}}\] | \[\mathbf{\text{CII}}\] | \[\mathbf{\text{CCX}}\] |
|---|---|---|---|---|---|---|---|---|
| \[19\] | \[16\] | \[27\] | \[34\] | \[40\] | \[57\] | \[65\] | \[102\] | \[210\] |
\[\boxed{\mathbf{2.}}\]
\[1)\]
| \[Первая\ цифра\] | \[Вторая\ цифра\] | ||
|---|---|---|---|
| \[1\] | \[4\] | \[7\] | |
| \[1\] | \[11\] | \[14\] | \[17\] |
| \[4\] | \[41\] | \[44\] | \[47\] |
| \[7\] | \[71\] | \[74\] | \[77\] |
\[2)\ \]
| \[Первая\ цифра\] | \[Вторая\ цифра\] | |||
|---|---|---|---|---|
| \[0\] | \[3\] | \[6\] | \[9\] | |
| \[3\] | \[30\] | \[33\] | \[36\] | \[39\] |
| \[6\] | \[60\] | \[63\] | \[66\] | \[69\] |
| \[9\] | \[90\] | \[93\] | \[96\] | \[99\] |
\[Ответ:1)\ 9;\ \ 2)\ 12.\]