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### Definition and basic elements of a circumference

You'll learn the basic notions about the circumference.

At the end of the theorical explanation, you can practice or create 5 exercises to master this subject.

Definition and basic elements of a cir ...

### The set of the natural numbers, order and representation

You'll learn how to identify the set of natural numbers.

At the end of the theorical explanation, you can practice or create 5 exercises to master this subject.

The set of the natural numbers, order ...

### Definition and notation of sets

You'll learn the basic definitions of set theory to work after the Algebra of sets.

At the end of the theorical explanation, you can practice or create 5 exercises to master this subject.

Definition ...

### Types of decimal numbers

You'll learn how to identify the different types of decimal numbers.

At the end of the theorical explanation, you can practice or create 5 exercises to master this subject.

Types of decimal numbers ...

### Elements of a polygon and classification

You will learn the basic concept of what is a polygon and its parts. You will also learn the classification of the regular polygons by their number of sides.

At the end of the theorical explanation, yo ...

### Decimal metric system: length, mass, capacity, surface and volume

You'll learn the measurement units of the decimal metric system, that is to say, its length, mass, capacity, surface and volume.

At the end of the theorical explanation, you can practice or create ...

### Boxes method

You'll learn to encrypt and decrypt messages using two different encryption systems.

At the end of the theoretical explanation you can practice or create 5 exercises to master this subject.

Boxes me ...

### Introduction to fractions

You'll learn the concept of fractions and understand it as a quotient of integer numbers and as division of the unit.

At the end of the theoretical explanation you can practice or create 5 exercis ...

### Square root

You'll learn the definition of the square root of a positive number, that is to say, you will know how to find a positive number that, multiplied by itself, results in a certain number in particul ...

### The sexagesimal system and its operations

You'll learn to operate with numbers expressed in sexagesimal system, to convert them from sexagesimals into decimals and vice versa. You will also learn to convert sexagesimal degrees into radian ...