5th grade
Natural numbers
Basic arithmetic operations
Calculation laws and advantages
Geometry

6th grade
Divisibility of numbers
Factions
Decimal fractions
Angles and angle measures

7th grade
Assignment and rule of three
Calculation of percentage
Rational numbers
Equation and inequation
Probability calculus

8th grade
Function and assignment
Triangles
Quadrangles
Calculation of surfaces
Transformation of terms
Probability calculus

9th grade
The root
Record set of the pythagoras

10th grade
Circle calculation
The cone
Power calculation
Power laws
Exponential function
Logarithm
Trigonometry
Probability calculus

 

Divisibility rules
 

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A natural number is divisible by

*     2, when the last digit is a 0, 2, 4, 6, 8,

*     5, when the last digit is a 0 or a 5,

*     10, when the last digit is a 0,

*     3 when the checksum is divisible by three,

 

*     9, when the checksum is divisible by 9,

*     4, when the last two digits together, make a number that is divisible by four,

*     25, when the last two digits of a number are added and the answer is then divisible by 25,

*     8, when the last three digits of a number added together make a number that is divisible by 8,

*     125, when the last three digits of a number make a number that is divisible by 125.

 

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02/09/07