Bereken: 2 · 16 + 2 · 3 – 4 · (2 + 6) / 23.
2 · 16 + 2 · 3 – 4 · (2 + 6) / 23 = = 2 · 4 + 2 · 3 – 4 · 8 / 8 = = 8 + 6 – 32 / 8 = = 8 + 6 – 4 = = 14 – 4 = = 10.