What is a Bodmas formula and how to use it

BODMAS-
                           1-The letter B is telling you to do the brackets first


                            2-The letters DM represent division and multiplication


                           3-  The letters AS represent addition and subtraction




     1.      ( )                 Brackets
     2. ÷ and  x           Left to right
    3.  + and  --           Left to right  

     

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