**A number is a mathematical value used to count and measure different objects. With the help of the numbers, we all can add, subtract, divide and multiple. Here we will be learning how to compare numbers, expand the numbers and also learn about the largest and the smallest numbers. Roman numerals and the Hindu-Arabic numeral system are the two different types of the number system used for writing numbers in many places. We all can see the roman numerals in clocks, page numbers, school timetable in syllabus page, etc.**

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