How the Multiplication Table Tool Works
The tool offers three modes built from the single fact that the cell at row a, column b holds the product a × b. Chart mode renders the full N×N grid (10, 12, 15 or 20) and, on hover or tap, highlights the active row and column and the product where they cross; the diagonal cells where a equals b are shaded as the perfect squares. Single-table mode lists one chosen number’s products from ×1 to ×12. Practice mode generates random a × b questions and grades the typed answer against the computed product, tracking score, accuracy and elapsed time. All three are plain client-side JavaScript with no server round-trip.
- Cell (row a, column b) = the product a × b
- Grid sizes 10, 12, 15 and 20 for chart and quiz difficulty
- Row/column highlight makes the two factors and product explicit
- Diagonal (a = b) shaded as the perfect squares
- All computation is client-side JavaScript with no API calls
