Question

Ffectueaza,respectand ordinea de rezolvare indicata:

Answer 1

  [(45+5)x8-20x5]:100=3
=(50x8-100):100
=(400-100):100
=300:100
=3
  200-[(25+25x25):50]:13=199
=200-[(25+625):50]:13
=200-(650:50):13
=200-13:13
=200-1
=199
  2x[90:2+(120:4-20)]x10=1100
=2x[45+(30-20)]x10
=2x(45+10)x10
=2x55x10
=110x10
=1100
   
2007+18:[2+(16-108:27):3]=2010
=2007+18:[2+(16-4):3]
=2007+18:(2+12:3)
=2007+18:(2+4)
=2007+18:6
=2007+3
=2010