1) 7 * (5 + 8) = 7 * 5 + 7 * 8 2) 15 * (12 - 5) = 7 * 15
7 * 13 = 35 + 56 15 * 7 = 7 * 15
91 = 91 105 = 105
1) 7 * (5 + 8) = 7 * 5 + 7 * 8 2) 15 * (12 - 5) = 7 * 15
7 * 13 = 35 + 56 15 * 7 = 7 * 15
91 = 91 105 = 105