Question

856+{19-3-[6+(5-3)-(2+1)+(5-3)]}

Answer 1

el total de la operación es 869

Answer 2

=856+{19-3-[6+5-3-2-1+5-3]}
=856+{19-3-6-5+3+2+1-5+3}
=856+19-3-6-5+3+2+1-5+3
=884-14
=870