(79 + 32 – 35) – (69 + 12 – 75)

2 bình luận về “(79 + 32 – 35) – (69 + 12 – 75)”

1. Giải :

   (79 + 32 -35 ) – ( 69 + 12 – 75 )
   = ( 79 + 32 – 35 ) – ( 69 – 12 -75)
   = ( 76 – 69)+ ( 32 – 12 ) + ( -35+75)
   =10+20+40
   =70

    

   Trả lời
2. (79 + 32 – 35) – (69 + 12 – 75)

   =79+32-35-69-12+75

   =(79-69)+(32-12)+(-35+75)

   =10+20+40

   =70

   Trả lời