\[\boxed{\text{195\ (195).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[8000\ :(25 \cdot 4) \cdot 7 =\]
\[= 8000\ :100 \cdot 7 = 80 \cdot 7 =\]
\[= 560\]
\[9000\ :(300\ :3) \cdot 6 =\]
\[= 9000\ :100 \cdot 6 = 90 \cdot 6 =\]
\[= 540\]
\[832 -^{1}328 -^{2}247 = 257\]
\[603 -^{1}\left( 347 -^{2}189 \right) = 445\]
\[903 -^{3}\left( 178 +^{1}359 \right)\ :^{2}3 =\]
\[= 903 - 179 = 724\]
\[324 +^{3}\left( 503 -^{1}299 \right)\ :^{2}4 = 375\]