The number zero was the first "invented" number.
The zero enables the use of place values which are fundamental to the decimal system. It allows you to differentiate between 109 and 19: the 1 in the first number represents the number of hundreds whereas in the second number the same digit represents the number of tens.
There is no one person who invented the number 10. Each society, when it started, had its own number system, so it is hard to tell who came up with the number and concept of 10 first.
In the decimal system, the first number after a decimal is the tenth spot, then the hundredth, then the thousandth. Also, when you round, if a number is above five, then you round to the next number, if it is below five you stay with the number you have. In this case the answer would be 30.09.
a tenth
The first people to use the decimal system and the number zero WERE NOT THE CHINESE! I am learning about this in school. The ancient Hindu's invented them during the Gupta Empire.
I believe nobody is positive about WHO invented it but it was first used in ancient India
i invented
Decimal number system
The decimal (base 10) number system can be found in many of the world's oldest civilizations and records including the Egyptians (3000 BC), Minoans (1600 BC), Bronze Age Greeces (1900 BC), Indian Brahmi (300 BC), Hittites (1600 BC), and Chinese (1700 BC). As such, either the system was invented multiple times or the inventor lost in pre-history.However, the first documented case of a decimal number system being invented is by Archimedes (287-212 BC) in his Sand Reckoner.
The number zero was the first "invented" number.
The zero enables the use of place values which are fundamental to the decimal system. It allows you to differentiate between 109 and 19: the 1 in the first number represents the number of hundreds whereas in the second number the same digit represents the number of tens.
There is no one person who invented the number 10. Each society, when it started, had its own number system, so it is hard to tell who came up with the number and concept of 10 first.
The first system of measurements that was based on units of tens was the metric system. This system was established during the French Revolution in the late 18th century and is now widely used around the world for its simplicity and consistency.
In the decimal system, the first number after a decimal is the tenth spot, then the hundredth, then the thousandth. Also, when you round, if a number is above five, then you round to the next number, if it is below five you stay with the number you have. In this case the answer would be 30.09.
it is the first decimal number
a tenth