Ответ:
а)
\(18\,384 + 19\,847 = 38\,231\).
\(384 - 201 - 183 = 183 - 183 = 0\).
\(38\,231 - 0 = 38\,231\).
б)
\(2\,839 - 939 = 1\,900\).
\(577 : 577 = 1\).
\(1\,900 \cdot 1 = 1\,900\).
Ответ: а) 38 231; б) 1 900.
а)
\(18\,384 + 19\,847 = 38\,231\).
\(384 - 201 - 183 = 183 - 183 = 0\).
\(38\,231 - 0 = 38\,231\).
б)
\(2\,839 - 939 = 1\,900\).
\(577 : 577 = 1\).
\(1\,900 \cdot 1 = 1\,900\).
Ответ: а) 38 231; б) 1 900.