Math Formulas

Math Formulas: Quick way to remember how to solve common math problems. List of basic math formulas commonly used when doing basic math computation.

Average formula:

Let a1,a2,a3,……,an be a set of numbers, average = (a1 + a2 + a3,+……+ an)/n

Percent:

Percent to fraction: x% = x/100
Percentage formula: Rate/100 = Percentage/base
Rate: The percent.
Base: The amount you are taking the percent of.
Percentage: The answer obtained by multiplying the base by the rate

Consumer math formulas:
Discount = list price × discount rate
Sale price = list price − discount
Discount rate = discount ÷ list price
Sales tax = price of item × tax rate
Interest = principal × rate of interest × time
Tips = cost of meals × tip rate
Commission = cost of service × commission rate

Geometry formulas:

Perimeter:
Perimeter of a square: s + s + s + s
s:length of one side

Perimeter of a rectangle: l + w + l + w
l: length
w: width

Perimeter of a triangle: a + b + c
a, b, and c: lengths of the 3 sides

Area:

Area of a square: s × s
s: length of one side

Area of a rectangle: l × w
l: length
w: width

Area of a triangle: (b × h)/2
b: length of base
h: length of height

Area of a trapezoid: (b1 + b2) × h/2
b1 and b2: parallel sides or the bases
h: length of height

Volume:

Volume of a cube: s × s × s
s: length of one side

Volume of a box: l × w × h
l: length
w: width
h: height

Volume of a sphere: (4/3) × pi × r3
pi: 3.14
r: radius of sphere

Volume of a triangular prism: area of triangle × Height = (1/2 base × height) × Height
base: length of the base of the triangle
height: height of the triangle
Height: height of the triangular prism

Volume of a cylinder:pi × r2 × Height
pi: 3.14
r: radius of the circle of the base
Height: height of the cylinder

Math formulas in Algebra

Algebra formulas.
Binomial Theorem Formulas
Combination Formulas
Change of base formula.
Logarithms Formulas
The Quadratic Formula
Math formulas in Arithmetic

Compound interest formula.
Present value formula.
Percentages formulas
Math formulas in Calculus

Derivative formulas.
Differentiation formulas.
Math formulas in Coordinate Geometry

Distance formula.
Midpoint formula.
Slope formula.
Math formulas in Geometry

Arc length formula.
Area formula.
Geometry formulas.
Perimeter and area.
Surface area formula.
Volume formula.
Math formulas in Matrices
Math formulas in Probability

Probability formulas.
Recursive formula.
Math formulas in Sets
Math formulas in Statistics

Statistics formulas.
Math formulas in Trigonometry

Euler’s formula.
Trigonometry formulas.

Want to add something more to this list of basic math formulas? Feel free to list it in the comments section below.