Question

10.00-{[(500×4+217:7)-(7×3×200:100-2×3×7)]×3}=

Answer 1

10.000-{[(500x4+217:7)-(7x3x200:100-2x3x7)]x3}=

10.000-{[(2.000+31)-(21x2-6x7)]x3}=

10.000-[2.031-(42-42)x3]=

10.000-(2.031-0x3)=

10.000-(2.031-0)=

10.000-2.031=7.969

Answer 2

    1.000-{[(500*4+217:7)-(7*3*200:100-2*3*7)]*3}=
     =1.000-{[2000+31)-(21*2-42)]*3}
     =1.000-[2031-(42-41)*3]
     =1.000-(2.031-0*3)
     =1.000-(2.031-0)
      =1.000-2.031
      =-1.031