| Grade | Representative Formula |
|---|---|
| 1 | Addition: a + b = c Subtraction: a − b = c |
| 2 | Multiplication: a × b = c Division: a ÷ b = c |
| 3 | Perimeter (Rectangle): P = 2(L + W) |
| 4 | Rectangle Area: A = L × W Square Area: A = s² |
| 5 | Average: Average = (Sum of values)/(Number of values) |
| 6 | Ratio: a:b = a/b Percent: (Part/Whole) × 100% |
| 7 | Distance: d = r × t Simple Interest: I = PRT |
| 8 | Slope: m = (y₂ − y₁)/(x₂ − x₁) Line: y = mx + b |
| 9 | Quadratic: ax² + bx + c = 0 Pythagorean: a² + b² = c² |
| 10 | Quadratic Formula: x = (-b ± √(b² − 4ac))/(2a) |
| 11 | Law of Sines: a/sinA = b/sinB = c/sinC Law of Cosines: c² = a² + b² − 2ab cos(C) |
| 12 | Derivative: d/dx(xⁿ) = nxⁿ⁻¹ Integral: ∫xⁿ dx = xⁿ⁺¹/(n+1) + C (n ≠ −1) |