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1. Average refers to the sum of numbers divided by n. Also called the mean average. Average Formula = Sum of observations/ Number of observations Some important properties of average are: When the difference between all the items is same (and the number of terms is odd), then...
1. Numeral : In Hindu Arabic system, we use ten symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, called digits to represent any numbers. A group of digits, denoting a number is called a numeral. We represent a number, say 689745132 as shown below : We read it as : ‘Sixty- eight crores,...
1. Factor and Multiples : Factoring is like taking a number apart. It means to express a number as the product of its factors. Factors are either composite numbers or prime numbers (except that 0 and 1 are neither prime nor composite). The number 12 is a multiple of 3, because it can be divide...