BODMAS

          In The simplifications of numerical questions, the order of mathematical operations to be followed is given in the abbreviated form : "BODMAS", where

·  B stands for 'Bracket '

·  O stands for 'Of '

·  D stands for 'Division '

·  M stands for 'Multiplication '

·  A stands for 'Addition ' and

·  S stands for 'Subtraction '.

          If the expression contains brackets, you must solve the expression within the brackets First. Some problems may have specific numbers in a bracket or more than one bracket. Such problems can be solved with the help of the following rule.

Order to be followed by in case of brackets is as follows :

· ---- : Line or Vinculum (Virnaculum) or Bar,

· ( )  : Small Brackets,

· { }  : Curly Brackets and

· [ ]  : Square Brackets

          If the expression involves 'of' (as we have mentioned in one of the above examples), multiplication (or division), addition and subtraction, then 'of' should be performed first, followed by multiplication or division. Then proceeding from the left to the right, addition and subtraction are carried out in the order in which the sign of addition and subtraction are given. It should be noted that if the expression contains 'of' and 'division' always do 'of' first and then do 'division' in order to get the correct answer.