1. + - 16 548976913524 2. 6 * 6 = 363 * 6 = 18 8 * 4 = 325 * 9 = 45 4 * 5 = 207 * 8 = 56 3. 16 / 4 = 428 / 7 = 4 42 / 6 = 740 / 5 = 8 64 / 8 = 856 / 8 = 7