Chinese number system

The Chinese number system, also known as the rod system, consists of these symbols for the numbers 1 to 9. As the image shows, each symbol has a horizontal representation (hengs) and a vertical representation (tsungs). This is because depending on the position of the symbol in the number they were written horizontally or vertically.Sigue leyendo “Chinese number system”

Babylonian number system

The Babylonian civilization was located in what is now Iraq. They were great mathematicians and astronomers. This numbering system appeared around 1800 BC. It is a positional number system, that is, the value of a symbol depends on its position in the number. It is a base sixty system, that is, they had symbols forSigue leyendo “Babylonian number system”

Roman number system

The Roman numeral system is still used today, when writing a century, on monuments, in the names of kings and popes. This system, based on the Etruscan numbering system, was developed in Ancient Rome. It is made up of capital letters that have different values ​​and is additive, that is, to know what number itSigue leyendo “Roman number system”

Egyptian number system

It is thought that the Egyptians introduced the base 10 numeration system at least as early as 2700 BCE (and probably much earlier). The number system was called hieroglyphics. This system made possible to carry out a record of the number of men available for work or military campaigns, to keep control of the grainsSigue leyendo “Egyptian number system”

Al Khwarizmi (English)

In the year 622 the Muslim Empire resurfaces again with the appearance of Muhammed. As they conquered new empires, they assimilated their knowledge. The center of Muslim civilization moved to Baghdad where in the 9th century the Caliph Al-Mamun founded the so-called “House of Wisdom”. It was a complex successor to the Library of Alexandria.Sigue leyendo “Al Khwarizmi (English)”

Binary System

The binary number system has its origin in ancient times. In the 3rd century BC, the Hindu mathematician Pingala first described a binary number system very similar to the current one. In China, the philosopher Shao Yong, in the 11th century, developed hexagrams that represented the numbers from 0 to 63 using a vertical lineSigue leyendo “Binary System”

A new car

 If you have to choose one, which one will you buy and why?  2. Numericus decided to buy an electric car. Look at the valuations that the drivers had made of six different brands of cars concerning the driving. Indicate the intersection and union of the intervals. 3. To buy the car Numericus has beenSigue leyendo “A new car”

Real Numbers

The beginnings. Complete the text with the following words Rational numbers Powers and roots Real numbers There are different kinds of numbers; first you have studied whole numbers and integers, with them you can add, multiply and subtract. After that you studied rational numbers, and division became possible. But there are other operations that cannotSigue leyendo “Real Numbers”

Share as an Egyptian – Fractions

The Egyptians were great mathematicians. They solved all kinds of problems using calculations such as marking the boundaries of the land when the Nile overflowed, the construction of pyramids, trade, distribution, etc. They knew the natural numbers and they used fractions with numerator 1, the unit fractions. An Egyptian fraction is a unit fraction andSigue leyendo “Share as an Egyptian – Fractions”

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