Alright, let's solve this math problem step by step. First, we have the number 162. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 20. So, we're going to take the number 162 and add it to itself 20 times.
Step 1: 0 + 162 = 162
Step 2: 162 + 162 = 324
Step 3: 324 + 162 = 486
Step 4: 486 + 162 = 648
Step 5: 648 + 162 = 810
Step 6: 810 + 162 = 972
Step 7: 972 + 162 = 1134
Step 8: 1134 + 162 = 1296
Step 9: 1296 + 162 = 1458
Step 10: 1458 + 162 = 1620
Step 11: 1620 + 162 = 1782
Step 12: 1782 + 162 = 1944
Step 13: 1944 + 162 = 2106
Step 14: 2106 + 162 = 2268
Step 15: 2268 + 162 = 2430
Step 16: 2430 + 162 = 2592
Step 17: 2592 + 162 = 2754
Step 18: 2754 + 162 = 2916
Step 19: 2916 + 162 = 3078
Step 20: 3078 + 162 = 3240

So, 162*20 = 3240