Step Solver — one click, one step

How to use it

• Press space or click Next step — one click reveals exactly one step.
• ← back · R replay · V narration · M effects · B music · F full screen.
• Difficulty is two separate things. Grade is the level — and when a paper declares its own, that wins: this one says Primary 1 on the cover, so every question here is G1. Stars are the insight needed on top, which is where all the difficulty actually lives. A 4-star Primary 1 question can beat an adult.
• Every problem is its own record in problems/; this page is only an index over them.
• Pick the background music below. The choice sticks for every question, and the 🎵 button on a question turns it on and off.

Your report card

What you have tried, how hard it was, and — where you picked a wrong answer — which mistake it was. That last column is the useful one.

Reported problems

Anything flagged with ⚑ Something looks wrong on a question lands here. It stays on this device — nothing is sent anywhere.

Music

Pick the theme here and it applies to every question. Press ▶ Listen to try one.

Full credits are in CREDITS.md.