Watch the animated walkthrough. Then try the 10 practice problems. Each lesson takes about 5 minutes. Your kid will master each one in a single session.
arithma.academy/?ref=loadingA peek at 6 of the 49 premium lessons. Subscribe to unlock the full walkthroughs + 10 practice problems each + grade-level adaptation.
Multiply any 2-digit × 2-digit (like 47 × 63) in one line — no carrying, no scratch paper.
96², 78², 23² — all in your head using the Yavadunam method. Works for every 2-digit number.
12³, 14³, 18³ instantly via the Anurupyena pattern. Most adults can't do this.
Find the square root of perfect squares like 5476, 9216, 7569 in seconds — no calculator, no long division.
x² + 7x + 12 → (x+3)(x+4) via the Vedic Vilokanam pattern. No FOIL trial-and-error.
Up to 4 kids practice together with sibling-vs-sibling timed challenges. Live family leaderboard. Parent dashboard tracks all kids.
52 more lessons across Grades K–12. Cross-wise multiplication, cubing two-digit numbers, square roots without a calculator, quadratic factoring shortcuts, and more. Plus weekly progress reports, parent dashboard, and family co-op practice.
Stripe checkout activates Fall 2026 · 7-day free trial · Cancel anytime
Every $5 = one month of free access for a kid in a Title I school. 100% of donations go to lesson development & school sponsorships. One-time, no auto-renew.