# Elementary School (page 2)

## Rule of three

Three simple rule
Compound Three Rule

## Periodic Tithes

Periodic Tithes
Generator of a periodic tithe

## Percentage

Percentage and centesimal ratio
Multiplication factor

## Flat geometry

Areas of the flat figures
Polygons

## Surface measurements

Introduction, Surface and Area, Square Meter
Unit Transformation

## Volume measurements

Introduction, Cubic Meter
Unit Transformation

## Capacity measurements

Introduction, capacity and liter

## Mass measurements

Introduction, Kilogram
Unit Transformation

## Time measurements

Introduction, Second, Second Multiples
Other units of measure

## Length measurements

Decimal metric system, meter
Unit Transformation
Polygon perimeter
Circumference Length

## 2nd degree equations

What is a 2nd degree equation?
Roots of a 2nd degree equation
Solving Incomplete Equations
Resolution of complete equations
Discriminator
Literal equations
Relations between coefficients and roots
Composition of a 2nd degree equation
Factored form
Beamed Equations
Solving a Balanced Equation
Composition of the equation
Irrational equations
Systems of equations of the 2nd degree
High School Problems
Another examples