Puzzle #9: Calculator

As a tribute to the old school, can you build a Calculator?

About this doc

As a tribute to the old school, can you build a Calculator? It should support all 4 operators (+ - x /).

Looking for a bigger challenge? Try the Bonus Challenges to add more calculator functions.

Copy this doc to get started - instructions are in the first section.

About Puzzles:

We love puzzles at Coda. Not only are they our preferred procrastination method, they also get at an important product tenant of ours: Encourage play. To that end, we started a Coda Puzzle team, devoted to coming up with wily, often-unnecessary formulas and hacks with which to challenge our coworkers. We hope you enjoy.


Key features


About the Maker

Angad Singh

Product Manager at Coda since Nov 2018. I love building tools that help people be more creative. I previously built an app that takes notes for you and exited it to Evernote.

@Angad|Angad's templates


Coda is a new doc that grows with your ideas
Angad Singh used Coda to create this doc. Our early makers have built docs that launch products, run companies, and remind them to water plants. Learn More
About Coda