пошаговое объяснение:

1) 14 *(17 + 13) = 14 * 30 = 420

2) 35 * (19 + 1) = 35 * 20 = 700

3) 23 * (17 - 7) = 23 * 10 = 230

4) 129 * (4 - 3) = 129 * 1 = 129

5) 6 * (47 - 7) = 6 * 40 = 240

6) 9 * (21 - 11) = 9 * 10 = 90