Question

resolva as expressoes numericas A: 2+8-3-5+15 B: 12+[35-(10+2)+2] C: [(18+3.2): 8+5.3]:6 D: 37+[-25-(-11+19-4)]

Answer 1

A) 2+8-3-5+15=
      10-3-5+15=
         7-5+15=
          2+15=17

B) 12+[35-(10+2)+2]=
     12+[35-8+2]=
      12+29=41

C) [(18+3.2):8+5.3]:6=
     [(18+6):8+15]:6=
     [24:8+15]:6=
     [3+15]:6
      18:6=3

D) 37+[-25-(-11+19-4)]=
     37+[-25-4]=
     37-29=8