Вычислите:
а) 4 + 4 + 4 = 3 * 4 = 12;
б) 7 + 7 + 7 + 7;
в) 8 + 8 + 8 + 8 + 8;
г) 11 + 11 + 11 + 11 + 11;
д) 15 + 15 + 15 + 15;
е) 46 + 46 + 46 + 46 + 46 + 46;
ж) 750 + 750 + 750 + 750;
з) 128 + 128 + 128 + 128 + 128;
и) 2011 + 2011 + 2011.
4 + 4 + 4 = 3 * 4 = 12
7 + 7 + 7 + 7 = 4 * 7 = 28
8 + 8 + 8 + 8 + 8 = 5 * 8 = 40
11 + 11 + 11 + 11 + 11 = 5 * 11 = 55
15 + 15 + 15 + 15 = 4 * 15 = 60
46 + 46 + 46 + 46 + 46 + 46 = 6 * 46 = 276
750 + 750 + 750 + 750 = 4 * 750 = 3000
128 + 128 + 128 + 128 + 128 = 5 * 128 = 640
2011 + 2011 + 2011 = 3 * 2011 = 6033