Mathematical Textbook for High School Students by Sucharita
English | 2022 | ISBN: N/A | ASIN: B0B5NJVHFP | 186 pages | EPUB | 4.54 Mb
A number is a way to represent quantity. Numbers are not something that we can touch or hold, because they are not physical. But you can touch three apples, three pencils, three books. You can never just touch three, you can only touch three of something. However, you don't need to see three apples in front of you to know that if you take one apple away, that there will be two apples left. You can just think about it. That is your brain representing the apples in numbers and then performing arithmetic on them.
A number represents quantity because we can look at the world around us and quantify it using numbers. How many minutes? How many kilometers? How many apples? How much money? How much medicine? These are all questions which can only be answered using numbers to tell us "how much" of something we want to measure.
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