Calm practice of all four operations — no timer, no pressure. On every mistake Flippy stops, spots what went wrong and explains visually how to think it through.

On a mistake Flippy doesn't just mark ✗ — he identifies why it happened and explains the right way visually: ten-frames, place-value decomposition and the distributive law.
Elementary students, grades 1–6. Sets progress with the curriculum — from addition up to 20 through two-digit multiplication and division.
Flippy is calm, untimed practice — the place to understand. The Arena is a fast 90-second duel — the place to build speed. They complement each other.
The first set of every operation is free, no signup. Full access — ₪29.90/month or ₪149/year, includes Arena tracking & parent dashboard.