In this section you will find teaching materials for elementary school. They are available from basic to advanced materials from 9th grade. Choose the desired material and good studies!

## Fractions

What is a fraction?The meaning of a fraction

How to read a fraction, classification of fractions

Equivalent fractions

Fractional Numbers

Addition and subtraction of fractional numbers

Multiplication and division of fractional numbers

Potentiation and rooting of fractional numbers

## Divisibility

Divisibility CriteriaPrime numbers

Prime factor decomposition

Determining the Dividers of a Number

Maximum common divisor (M.D.C.)

Least Common Multiple (M.M.C.)

## 1st degree equations with one variable

IntroductionUniverse set and truth set of an equation

Roots of an equation

Solve an equation

Impossible Equations and Identities

## Equations of the 1st degree with two variables

Ordered PairsCartesian coordinates

Cartesian plane

Cartesian Product

What is a 1st degree equation with two variables?

Solution of a two-variable first degree equation

Graph of a first degree equation with two variables

Equation Systems

Systems Resolution

## Inequalities of the 1st degree

What is an inequality?Graphic representation

Graphical resolution of an inequality system

## Potentiation

What is empowerment?Potentiation Properties

Product of same base powers

Division of powers of the same base

Power power

Distributive in relation to multiplication

Distributive in relation to division

## Rooting

What is root settlement?Even Index Roots

Odd Index Roots

Power with fractional exponent

Properties of radicals

Radical Simplification

Similar radicals

Addition and subtraction of radicals

Multiplication and division of radicals

Power of a radical

Radical of a radical

Rationalization of denominators

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## Reasons

What is a reason?Terms of a reason

Inverse Reasons

Equivalent ratios

Reasons between quantities of the same species

Ratios between quantities of different species

## Proportions

What is a ratio?Elements of a ratio

Fundamental property of proportions

Fundamental Property Applications

Proportional Fourth

Continuous ratio

Proportion Properties

Multiple ratio

## Roman numerals

Roman Numbering and Its RulesTable - from 1 to 1449

Table - from 1450 to 2100

Numbers greater than 2100

## Proportional quantities

What is a greatness?Directly proportional quantities

Inverse proportional quantities

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