Ответ:
а) \(37.6 - 5.84 + 3.95 - 8.9 = 31.76 + 3.95 - 8.9 = 35.71 - 8.9 = 26.81\).
б) \(81 - 45.34 + 19.6 + 21.76 = 35.66 + 19.6 + 21.76 = 55.26 + 21.76 = 77.02\).
Ответ: а) 26,81; б) 77,02.
а) \(37.6 - 5.84 + 3.95 - 8.9 = 31.76 + 3.95 - 8.9 = 35.71 - 8.9 = 26.81\).
б) \(81 - 45.34 + 19.6 + 21.76 = 35.66 + 19.6 + 21.76 = 55.26 + 21.76 = 77.02\).
Ответ: а) 26,81; б) 77,02.