stop at ten




when people first began to count they needed a name for every number.There 's no way that we can tell where the names for number came from so long ago. perhaps they were made-up words.or perhaps they were words that meant other things, but were also used as names for numbers.
In the beginning, people did all their counting on their fingers.Because they had ten finger ,they counted things by tens. they would count up to ten finger and then start again. Ten  became a sort of stopping place in counting .so the first ten number were given special name.
people soon decided that the number  100 was also a stopping place because it was ten of somthing -it was 10ten .so they give it a special name too.1,000 was special because it was also ten of somthing -10 hundreds.
These ten numbers are very important in our system of counting .Think of all the things around you that are broken up in to the units of ten or are a certain number of tens .A decade is ten years .A century is 100 years-10 tens.
The numbers on a car' s speedometer are marked in tens.

 





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