🧰 Variable Vault

Run commands that change a counter — get the variable to exactly the target!

Playing here doesn't save progress. Open it in TernQuest to keep stars and coins, or make a free account.

What does Variable Vault teach?

Variable Vault is a math game for 3rd grade – 5th grade that practises variables. Like every TernQuest game it is tied to a skill on the curriculum map (California Common Core, PK–5), and Pip the tern gives hints, never answers.

Is it free?

Yes. Variable Vault is in the free tier, playable in the browser with no ads and no signup. A free account (one child) saves progress and stars.