Question

2×[90:2+(120:4-20)]×10

Answer 1

2×[90:2 +(120 :4 -20 )]×10
2×[45 +(30 -20 )]×10
2×(45 +10 )×10
2×55 ×10
110 ×10
1100

Answer 2

2×[90:2+(120:4-20)]×10=
2×[90:2+(30-20)]×10=
2×[90:2+10]×10=
2×[45+10]×10=
2×55×10=
110×10=
1100