Fill your cart with the genuinely cheapest option per unit, stay under budget, and flag the single fake bargain whose claim doesn't add up.
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How to play
Each item on the shelf offers several pack sizes, coupons and flashy tags. Your job is to choose the best true value per unit for every item, keep the total under budget, and spot the one deal whose advertised saving is a lie. Get all three right at checkout to clear the round.
Pick the lowest genuine price per unit for each item
Keep your spend under the budget
Flag exactly one fake deal per round
Check out only when every item is chosen
Controls
Desktop: click an option to add it to the cart, click the flag icon to mark a fake deal, then Check Out.
Phone & tablet: tap options and the flag, then tap Check Out, touch supported.
Game modes
Daily: one shared seeded shelf per day
Practice: fresh shelves at Easy, Medium or Hard
Tips & strategy
Always compare the per-unit price, never the pack price, bigger isn't automatically cheaper
Apply the coupon math before deciding; a percentage off a small pack can beat a dollar off a big one
The flashiest tag is usually the fake, verify its claimed saving against the real unit cost
What you'll learn
Cart Logic builds unit-price literacy and everyday economics, turning smart grocery shopping into a skill you practise.
Skills: unit price, comparison shopping, consumer math, everyday economics
Best for: roughly grades 4–10 (ages 9–16)
For parents & teachers: practical money math for everyday shopping.
About Cart Logic
Cart Logic is an original free browser game about everyday economics and unit-price literacy, turning smart grocery comparison into a timed puzzle. Built in-house for PlayPendium.
A free, original browser game on PlayPendium. No download, no install.
