is 1.799 between 1.7 and 1.8? explain your thinking

It is because 1.700 and 1.800 when multiplied by 100 become 1700 and 1800 and when you multiply 1.799 by 100 to get 1799 you wil find that when you subtract 1800 by it you get 1 and when you subtract 1700 by it you get -98.