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Every great story has a strong foundation—the story structure. Structure helps storytellers answer the critical question: what do I want my audience to know and when?

### Sum and subtraction of fractions

The sum of two fractions with equal denominators is a new fraction with the same denominator and the numerator with the sum of the numerators. To subtract fractions we proceed in the same way: keep th ...

### 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 ...

### General method for the calculation of determinants

You'll learn to calculate determinants of any order, some of its most important propierties and how to calculate a adjoint matrix.

General method for the calculation of determinants is a didactic c ...

### Matrix concept and types of matrices

You'll learn what is a matrix , its elements and the way to add up and to multiply matrices.

Matrix concept and types of matrices is a didactic content from Sangakoo. In this space you will find te ...

### 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 ...

### Statistical basic concepts

You'll learn basic statistical concepts, such as doing different graphics and calculating the average.

Statistical basic concepts is a didactic content from Sangakoo. In this space you will find te ...