Sure thing, let's get straight to it. We start with 685 and we're going to multiply it by 3, which means adding 685 to itself 3 times.
Step 1: 0 + 685 = 685
Step 2: 685 + 685 = 1370
Step 3: 1370 + 685 = 2055

So, 685*3 = 2055