Ответ:
\(402-130=402-100-30=302-30=272\).
\(347-108=347-100-8=247-8=239\).
\(902-555=902-500-55=402-55=347\).
\(807-438=807-400-38=407-38=369\).
Ответ: 272; 239; 347; 369.
\(402-130=402-100-30=302-30=272\).
\(347-108=347-100-8=247-8=239\).
\(902-555=902-500-55=402-55=347\).
\(807-438=807-400-38=407-38=369\).
Ответ: 272; 239; 347; 369.