Page 192 - MATH NIVEL 1
P. 192

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                  1st  Grade  -  Primary  Education                        MATHEMATICS







                      PERATIONS  COMBINED  WITH  SIGNS
                 EITHER
                                             GROUPING







                                                                                Parenthesis

                                  signs

                                     of                                        Brackets

                               group


                                                                                Keys






          1.  To  solve  a  combined  operation  of  addition  and  subtraction  with  grouping  signs,  you  must  first  solve  for  the  grouping  signs,
                that  is,  from  the  parentheses  to  suppress  them  and  then  solve  them  in  the  order  presented.



                Example:




                                                                        Eye:
                              5  +  8  –  ( 4  +  3 )
                                                                    First  for  the

                                                                grouping  signs
                                                 7



          2.  After  solving  all  the  operations  that  have  grouping  signs,  I  start  to  develop
                roll  as  always  from  left  to  right.


                                                  5  +  8  –  (4  +  3)

                                                  5  +  8  –  7


                                                     14       –  7

                                                             7








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