Alright, let's solve this math problem step by step. First, we have the number 553. 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 553 and add it to itself 20 times.
Step 1: 0 + 553 = 553
Step 2: 553 + 553 = 1106
Step 3: 1106 + 553 = 1659
Step 4: 1659 + 553 = 2212
Step 5: 2212 + 553 = 2765
Step 6: 2765 + 553 = 3318
Step 7: 3318 + 553 = 3871
Step 8: 3871 + 553 = 4424
Step 9: 4424 + 553 = 4977
Step 10: 4977 + 553 = 5530
Step 11: 5530 + 553 = 6083
Step 12: 6083 + 553 = 6636
Step 13: 6636 + 553 = 7189
Step 14: 7189 + 553 = 7742
Step 15: 7742 + 553 = 8295
Step 16: 8295 + 553 = 8848
Step 17: 8848 + 553 = 9401
Step 18: 9401 + 553 = 9954
Step 19: 9954 + 553 = 10507
Step 20: 10507 + 553 = 11060

So, 553*20 = 11060