July 2023 1 7 Report
2.4 RESUELVA las siguientes operaciones combinadas.
a) (- 8) + ( -10) - (5) - ( -12)
b) 100 + (- 200) – (- 300) + (400)
c) (4) ( -5) (-2) + 3 - (7) (- 3) +1
a. (4) (-5) (6) (10) + (8) (6) : ( 3 ) + ( -23 ) – ( - 20 )
d) ( 15 ) : ( -3 ) + ( 8) ( 21 ) : ( 7) + ( 10 - 18 ) : ( - 2 ) + ( 33 – 30 ) (2) (-3 )

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