Question

{2×7-[6+2×(30-15÷5)]÷5}×(100×10-3×304)=

Answer 1

15/5=3, 30-3= 27,27*2=54,6+54=60,60/5=12,2*7=14,14-12=2

100*10=1000,304*3=912,1000-912=88

2*88=176

Answer 2

{ 2 × 7 - [ 6 + 2 × ( 30 - 15 : 5 ) ] : 5} × ( 100 × 10 - 3 × 304 ) = 176

= { 14 - [ 6 + 2 × ( 30 - 3 ) ] : 5 } × ( 1 000 - 912 ) =

= [ 14 - ( 6 + 2 × 27 ) : 5 ] x 88 =

= [ 14 - ( 6 + 54 ) : 5 ] x 88 =

= ( 14 - 60 : 5 ) x 88 =

= ( 14 - 12 ) x 88 =

= 2 x 88 =

= 176