Составь схемы и выполни действия:
9 * 15
79 * 3
4 * 48
5 * 56
9 * 15 = (10 + 5) * 9 = 10 * 9 + 5 * 9 = 90 + 45 = 135
79 * 3 = (70 + 9) * 3 = 70 * 3 + 9 * 3 = 210 + 27 = 237
4 * 48 = (40 + 8) * 4 = 40 * 4 + 8 * 4 = 160 + 32 = 192
5 * 56 = (50 + 6) * 5 = 50 * 5 + 6 * 5 = 250 + 30 = 280