Alright, let's solve this math problem step by step. First, we have the number 11. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 15. So, we're going to take the number 11 and add it to itself 15 times.
Step 1: 0 + 11 = 11
Step 2: 11 + 11 = 22
Step 3: 22 + 11 = 33
Step 4: 33 + 11 = 44
Step 5: 44 + 11 = 55
Step 6: 55 + 11 = 66
Step 7: 66 + 11 = 77
Step 8: 77 + 11 = 88
Step 9: 88 + 11 = 99
Step 10: 99 + 11 = 110
Step 11: 110 + 11 = 121
Step 12: 121 + 11 = 132
Step 13: 132 + 11 = 143
Step 14: 143 + 11 = 154
Step 15: 154 + 11 = 165

So, 11*15 = 165