Alright, let's solve this math problem step by step. First, we have the number 525. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 3. So, we're going to take the number 525 and add it to itself 3 times.
Step 1: 0 + 525 = 525
Step 2: 525 + 525 = 1050
Step 3: 1050 + 525 = 1575

So, 525*3 = 1575