OK, let's crack this. We're given 30 and our task is to multiply it by 35. Essentially, we'll be adding 30 to itself 35 times.
Step 1: 0 + 30 = 30
Step 2: 30 + 30 = 60
Step 3: 60 + 30 = 90
Step 4: 90 + 30 = 120
Step 5: 120 + 30 = 150
Step 6: 150 + 30 = 180
Step 7: 180 + 30 = 210
Step 8: 210 + 30 = 240
Step 9: 240 + 30 = 270
Step 10: 270 + 30 = 300
Step 11: 300 + 30 = 330
Step 12: 330 + 30 = 360
Step 13: 360 + 30 = 390
Step 14: 390 + 30 = 420
Step 15: 420 + 30 = 450
Step 16: 450 + 30 = 480
Step 17: 480 + 30 = 510
Step 18: 510 + 30 = 540
Step 19: 540 + 30 = 570
Step 20: 570 + 30 = 600
Step 21: 600 + 30 = 630
Step 22: 630 + 30 = 660
Step 23: 660 + 30 = 690
Step 24: 690 + 30 = 720
Step 25: 720 + 30 = 750
Step 26: 750 + 30 = 780
Step 27: 780 + 30 = 810
Step 28: 810 + 30 = 840
Step 29: 840 + 30 = 870
Step 30: 870 + 30 = 900
Step 31: 900 + 30 = 930
Step 32: 930 + 30 = 960
Step 33: 960 + 30 = 990
Step 34: 990 + 30 = 1020
Step 35: 1020 + 30 = 1050

So, 30*35 = 1050