Why do receiving and shipping numbers confuse me?

You can lift, carry, and stack all day. That is not the problem. The problem is what happens before and after the lifting — the count, the check, the mark on the sheet or the tap on the screen. Here is the truth you may not want: this confusion is not because you are bad with numbers. It is because no one ever showed you the logic underneath them. You were handed a form and told to fill it in, not told why it matters or what it protects. Every shipment is a promise. Receiving checks whether the promise was kept. Shipping makes a new promise going out the door. Once you see it that way, the paperwork is not a puzzle — it is just proof.