\[\boxed{\text{205\ (205).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[8300\ :10 - 30 = 830 - 30 =\]
\[= 800\]
\[36 \cdot 1000 + 20 = 36\ 000 + 20 =\]
\[= 36\ 020\]
\[200\ :(310 - 300)\ :5 =\]
\[= 200\ :10\ :5 = 20\ :5 = 4\]
\[400\ :(460 - 360) \cdot 4 =\]
\[= 400\ :100 \cdot 4 = 4 \cdot 4 = 16\]
\[61\ 000 - 1 = 60\ 999\]
\[49\ 099 + 1 = 49\ 100\]