Can I order a version with my own brand?

Yes. We build custom games with your logo, mascot, prizes and leaderboard for events, booths, campaigns and education. Contact us on WhatsApp for a concept and quote.

How do I buy the project file?

The project file of Rumus Lembar Kantin costs US$49. Use the "Buy project file" section on this page to pay online or order via WhatsApp; bundle discounts apply when you buy several games.

Cerdas Inovasi DigitalSoftware Developer ~ Custom ServicesTraining ~ Established since 1995

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Rumus Lembar Kantin

Write SUM and AVERAGE formulas on a worksheet so the school canteen report matches the data

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Canteen Sheet Formulas turns learning worksheets into a fun puzzle. Players become Bu Sari’s assistant in a school canteen: every report has empty cells marked with a question mark that need a formula so the result matches the note. Tap SUM or AVERAGE, drag on the table to pick a range such as B2:B6, then combine with plus, minus, times and divide. A right formula serves a customer and fills the cell, and once every cell is right the data changes for tomorrow, so only formulas that use cell addresses pass the test. 25 reports that grow up to a semester report, a new Daily Report every day with a streak, and a canteen menu book to collect keep players coming back. A good fit for middle-school ICT and maths classes. Try it right here below, then picture a game like this featuring your brand’s logo, characters and prizes.

Play It Now

Touch/mouse: tap SUM( or AVERAGE(, drag on the table to pick a range, tap OK · Keyboard: type the formula, Enter OK, Backspace deletes, Tab switches cell, ? hint, Esc pause, F2 sound

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Rotate your phone to landscape for the best experience.
Add to Home Screen from your browser menu for quick access.

Game Info

CategoryPuzzle Game
ThemeJunior High
LanguageID · EN

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Gameplay

25 canteen reports that grow in difficulty (sums, averages, price × quantity, profit, percent, averages without a holiday) in morning, noon, rainy, sunset and night canteen scenes
A real formula engine: SUM, AVERAGE, cell ranges, + − × ÷, brackets and result cells you can reuse, with coloured highlights on the cells a formula uses
The Tomorrow Test: once every cell is right the data changes and the formulas are checked again, so typing the result fails; every report is proven solvable
A new Daily Report every date with streak and badges, a 25-dish canteen menu book, step-by-step hints, an in-game how-to-play and an online leaderboard

Production Quality

Original graphics, characters, music and sound effects created by our team
Plays instantly on phones, tablets and laptops with nothing to install, lightweight and smooth at 60 fps
Touch and keyboard controls, with high scores and progress saved on the device
Available in Indonesian and English

Order One for Your Brand

Swap the canteen name, characters and menu for a food brand, school co-op or training provider, complete with campaign logo and colours
Ideal for schools, ICT tutoring centres, textbook publishers and office-software brands that want a branded educational game
Add online leaderboards, coupons or prizes, QR codes for events and visitor data forms
Fast turnaround from concept to launch, including setup on your website or app

Play Rumus Lembar Kantin Online for Free on Phone and Laptop

Rumus Lembar Kantin is a spreadsheet formula puzzle game for middle school you can play online for free right in your browser, with no download and no app to install. It runs smoothly on Android phones, iPhones, tablets, laptops and PCs, so it is perfect for a quick break at any time. The difficulty rises step by step, welcoming for beginners yet still challenging for experienced players. Rumus Lembar Kantin is developed by PT Cerdas Inovasi Digital, a game development studio in Indonesia, and can be customised for brand promotions, events and education.

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Frequently Asked Questions about Rumus Lembar Kantin

Is Rumus Lembar Kantin free?

Yes. Rumus Lembar Kantin is free to play online in your browser, with no download and no sign-up needed.

Can I play Rumus Lembar Kantin on my phone?

Yes. It runs in the browser on phones, tablets and laptops. On a phone, use the full screen button and rotate to landscape if the game needs more room.

How do I play Rumus Lembar Kantin?

Touch/mouse: tap SUM( or AVERAGE(, drag on the table to pick a range, tap OK · Keyboard: type the formula, Enter OK, Backspace deletes, Tab switches cell, ? hint, Esc pause, F2 sound

How many levels does Rumus Lembar Kantin have?

Rumus Lembar Kantin is built in progressive steps, with the difficulty rising as you play. Category: Puzzle Game.

Buy the Rumus Lembar Kantin Project Files

Get the full game to learn from, customise for your brand or publish on your own site.

Complete source code (HTML5 Canvas + JavaScript), no libraries or build step needed
All levels, graphics, music and sound effects included, ready to run in any modern browser
A short guide to changing texts, colours and difficulty and putting the game on your own website

Instant download after payment · secure checkout by PayPal · Buy 3+ games together and save up to 30%

Want a game like this for your brand?

We design and build custom games for event activations, booths, campaigns and education, complete with your logo, mascot, prizes and leaderboards. Besides web (HTML5), we can build it in the format you need: Unity, Unreal Engine, Godot, an Android/iOS app, a desktop (Windows/Mac) game, a touchscreen kiosk, WebGL 3D, or AR/VR. Tell us your idea and we will send a concept and quote.

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