☼ Square of a number : If a number is multiplied by itself the product so obtained is called the square of that number.
e.g. Square of 9 = 9
■ Rule : In the given decimal numerals, make same number of decimal places by annexing zeros if needed. Considering these numbers without decimal places, find H.C.F. or L.C.M. as the case may be. Now, in the re…
■ Rule : Divide the given decimal fraction without the decimal point by the given counting number. Now, in the quotient, put the decimal point to give as many paces of decimal as are there in the dividend.