Ответ:
\(900:100=9\).
\(23\cdot10=230\).
\(1\cdot58=58\).
\(81:81+64\cdot0=1+0=1\).
\(81:9:9\cdot1-1=9:9\cdot1-1=1-1=0\).
\(28:(5-21:21)=28:(5-1)=28:4=7\).
\(300:10=30\).
\(510:3=170\).
\(400:4=100\).
Ответ: 9; 230; 58; 1; 0; 7; 30; 170; 100.
\(900:100=9\).
\(23\cdot10=230\).
\(1\cdot58=58\).
\(81:81+64\cdot0=1+0=1\).
\(81:9:9\cdot1-1=9:9\cdot1-1=1-1=0\).
\(28:(5-21:21)=28:(5-1)=28:4=7\).
\(300:10=30\).
\(510:3=170\).
\(400:4=100\).
Ответ: 9; 230; 58; 1; 0; 7; 30; 170; 100.