3) 3,007 + 4,625 + 12,193 - 2,826 - 1,174 - 2,025

Решение:

\( 3,007 + 4,625 + 12,193 - 2,826 - 1,174 - 2,025 = 7,632 + 12,193 - 2,826 - 1,174 - 2,025 = 19,825 - 2,826 - 1,174 - 2,025 = 16,999 - 1,174 - 2,025 = 15,825 - 2,025 = 13,8 \)

Ответ: 13,8