a) (936: 24 + 32 · 14): 487 = (39 + 448): 487 = 487: 487 = 1.
б) (43 · 56 + 43 · 44): 215 – 15 = (43 · (56 + 44)): 215 – 15 = (43 · 100): 215 – 15 = 4300: 215 – 15 = 20 – 15 = 5.