Let's get this math done. We have 475 and we're going to multiply it by 3. This is the same as taking 475 and adding it to itself 3 times.
Step 1: 0 + 475 = 475
Step 2: 475 + 475 = 950
Step 3: 950 + 475 = 1425

So, 475*3 = 1425