OK, let's work through this together. We're starting with 110 and we're going to multiply it by 20, which means we add 110 to itself 20 times.
Step 1: 0 + 110 = 110
Step 2: 110 + 110 = 220
Step 3: 220 + 110 = 330
Step 4: 330 + 110 = 440
Step 5: 440 + 110 = 550
Step 6: 550 + 110 = 660
Step 7: 660 + 110 = 770
Step 8: 770 + 110 = 880
Step 9: 880 + 110 = 990
Step 10: 990 + 110 = 1100
Step 11: 1100 + 110 = 1210
Step 12: 1210 + 110 = 1320
Step 13: 1320 + 110 = 1430
Step 14: 1430 + 110 = 1540
Step 15: 1540 + 110 = 1650
Step 16: 1650 + 110 = 1760
Step 17: 1760 + 110 = 1870
Step 18: 1870 + 110 = 1980
Step 19: 1980 + 110 = 2090
Step 20: 2090 + 110 = 2200

So, 110*20 = 2200