OK, let's work through this together. We're starting with 433 and we're going to multiply it by 3, which means we add 433 to itself 3 times.
Step 1: 0 + 433 = 433
Step 2: 433 + 433 = 866
Step 3: 866 + 433 = 1299

So, 433*3 = 1299