1 00:00:00,000 --> 00:00:09,080 Cálculo mental rápido. Seguimos sumando tres cuartos con lo que es lo mismo 0,75. 2 00:00:09,080 --> 00:00:14,840 Empezamos. 48 3 00:00:15,480 --> 00:00:18,920 49 4 00:00:20,320 --> 00:00:24,400 49,5 5 00:00:24,800 --> 00:00:28,080 51 6 00:00:28,080 --> 00:00:32,400 53,5 7 00:00:33,080 --> 00:00:36,720 55 8 00:00:37,080 --> 00:00:41,560 55,5 9 00:00:43,080 --> 00:00:46,720 57 10 00:00:47,920 --> 00:00:52,440 57,5 11 00:00:53,320 --> 00:00:57,800 59,5