Helper for grades 1–6. All calculations run locally; nothing is sent to the server.
What works / what does not
✓ + − × ÷, parentheses, decimals✓ Add, subtract, multiply, divide fractions with steps✓ Percent of a number, increase/decrease, what percent✓ Rectangle, square, right triangle — area & perimeter✗ Equations with x, quadratics✗ Function graphs✗ Trigonometry, roots, powers✗ OGE/EGE exam formats (separate tool later)
Step-by-step hints are simplified for learning — not a formal exam solution write-up.