No, they inherited them from the Etruscans.
they invent in on a cave...
The Romans did invent the lottery during the 1400s. They would paint roman numerals on clay balls that were then mixed up and drawn.
They didn't it was the Etruscans who came up with the idea of of writing out symbols to represent numerical quantities and the Romans copied it. The Etruscans once ruled the Romans.
No, money had been around for centuries before Rome came on the scene. The Romans did "invent" their own system of coins and their values.
By research i believe the Etruscans created Roman numerals these two numbers systems have similarities except they have different symbolic signs towards each other. The Etruscans did and they once ruled the Romans.
They created their own system of numeracy which are Roman numerals
They didn't because this type of numeracy system was created by the mysterious Etruscans and not much is known in history about them.
The Romans didn't invent the microscope
The Romans used Roman numerals because that was their way of calculating. Roman numerals are really very simple and straightforward. For example, the I = 1, no problem there. Three I's - 3. C = 100, the Latin abbreviation for centum , M - 1000, the Latin abbreviation for mille. For us it takes a bit of figuring out, but for the Romans it was simple; if a person could count, he could read numbers.
The Romans invented concrete.
Queen Elizabeth II, who is the current monarch of Great Britain did not invent Roman numerals. They have been in use for over two thousand years, most notably by the Romans.
It was the ancient Romans who modified the Etruscan numerals system and the Etruscans once ruled the Romans