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Learning Labs / Checkout Quest

Every checkout is a little challenge.

Run a miniature market, handle real-world checkout puzzles, and learn the numbers behind great service.

01 / Miniature marketYOUR NEXT SHIFT
0 / 6 completed

Mission 1 / 6

A basket, one clear total

Scan every item once and return the correct change.

LEARN BY DOING
Concept & predictionUnderstand the choice, then try it.

A total is the sum of each line: unit price × quantity. Scanning consistently prevents missing items and accidental duplicates.

Payment and revenue are different. A customer can give more money than the total; the difference is money you must return.

Count change from the final total up to the payment. Checking it twice protects both the customer and the drawer.

Milk plus bread costs Rp 30,000. The customer gives Rp 50,000. What change is due?

Try the mission, read the result, then compare your prediction.

At your paceNo time pressure
0 / 1Customers served
Rp 0Sales completed
Clear so farCheckout checks
Explore the scene

Opening your miniature world…

Nadia is at the counter. Select a product to scan it, then use the labeled checkout controls to complete the transaction.

Drag empty space to rotate · Scroll or pinch to zoom · Select a customer, item, or table · Arrow keys rotate the focused view · Home resets it. Labeled controls offer the same actions.

Customer queue

Nadia / at the counter2 products

A fictional shop with Indonesian rupiah examples. Weighted produce uses net grams, the basket offer is exactly 10%, and taxes are omitted. Real stores may use different prices, promotions, rounding, and cash-handling procedures. All play actions also have labeled buttons.

Learning progress

Completed missions and your best challenge are saved for your next visit.

Keep your curiosity going.

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