5. Вычислите удобным способом:

1) 4 · 23 = 92; 25 = 25 → 92 + 25 = 117. 2) 8 · 14 = 112; 125 = 125 → 112 - 125 = -13. 3) 5 · 48 = 240; 4 = 4 → 240 + 4 = 244. 4) 416 ÷ 2 = 208; 50 = 50 → 208 - 50 = 158.