Primary school
Addition and subtraction
Description of basic mathematical operations of addition and subtraction, description of algorithms for adding large numbers and subtracting large numbers.
Multiplication
Division of numbers
Many members of
Basic knowledge about polynomials, descriptions of common operations we perform with polynomials, and some sample examples to simplify complex polynomials.
Broken expressions
A description of fractional expressions, a summary of common techniques used in simplifying fractional expressions, and some sample annotated examples
Fractions
How do we define a fraction, how can we shorten a fraction, what is the basic shape of a fraction and there is no shortage of descriptions of operations we can perform with fractions. Specifically addition, subtraction and multiplication and division.
Retrieved from
A description of the method of how to multiply parentheses and then how to backtrack them. Sample examples are self-explanatory.
Percentages
What percentages are, how to calculate them. Percentage as part of a whole. Adding percentages and explaining the mischievous cascade of percentages. Examples for counting with percentages.
Rounding up
How to round numbers to different orders of magnitude. A step-by-step explanation from the simplest rounding to tens to rounding decimals.
The Trinomial
How to calculate examples using the trinomial, some sample examples and an explanation of the algorithm using arrows.