Math

This article provides a technique for using the abacus to perform subtraction equations and a simple method for introducing children to subtraction.

This article provides a technique for performing division using the abacus.

Working out the odds of an event occurring allows us to estimate the number of times that event will take place in future trials. Permutations/combinations are also an important part of the analysis.

When solving division problems, it can be challenging for students to learn how to interpret the remainder. With these 40 example division problems, you can learn more about four possible ways to interpret the meaning of the remainder.

Modern day calculator dependence is enabling a consensus to alter long-known, tried and tested, math guidelines, such as PEMDAS/BODMAS, and is applying them them as strict rules instead. My article proves that 8 ÷ (2 + 2) = 1 with or without calculators.

Prepare yourself for another journey exploring the world of cats through the lens of mathematics.

How do you add and subtract fractions on the abacus? Mixed numbers? Complex fractions? Introduce children to fractions? Learn from this article.

This second part of a two part tutorial covers integral calculus and applications of integration.

This first part of a two part tutorial covers the concept of limits, differentiating by first principles, rules of differentiation and applications of differential calculus.

The uses of math for the layperson are essentially endless. No matter whether you are a struggling student, a homeowner, or someone simply trying to lose weight, math is the universal language that has an something to offer everyone.

Solving triangles using Pythagoras's theorem, the cosine rule, the sine rule and various ways of calculating the area of a triangle.

Converting between digital binary words and decimal, octal, or hexadecimal number systems, for human use, is essential to understand the inner workings of the vast tech world of gaming, gadgets, computers, and computerized most things. I describe the best ways to perform these tasks.

The Viral Equation 8 ÷ 2(2 + 2) has only one answer and that is 1 not 16. PEMDAS and BODMAS are being incorrectly applied to this equation by the proponents of 16 as a result, probably due to calculators and spreadsheets applying incorrect rules and not being challenged many years ago.

Equation of a parabola, meaning of locus, directrix, focus, quadratic equation, maxima and minima etc.

This guide explains everything you need to know about circles, including calculation of area, segment area, sector area, length of an arc, radians, sine and cosine.

ppm is mentioned in many user manual specifications sections of appliances, gadgets, and materials. Why should this be? Why not use per cent (%) or even decimal fractions? ppm is important for accuracy and for safety reasons and is explained here along with conversion methods between the parameters.