Question

Expressões Aritméticas

1) 15-(5-2+6)-1=
2) 8-3:(2+1)+2.4=
3) (6.8):24+5-2.(3.2)=
4) 3+2.(18:6+4)-10=
5) 2+[(5.2):2-(4.0.2)]=
6) [25-(4.2)]+[1+27]=
7) 36+2.[16-2.(8-3.1)]-9.5=
8) {32-[5+(3.7-4)]}:5+9.2-(64-60).5=
9) 33+{2.7[6+(10-2.4)+1]+16}-49+1=
10) {21+[7.(33-22)-50]:(9.3)}:11+8=

Answer 1

A)15-(5-2+6)-1=      LEMBRE, RESOLVE PRIMEIRO OS PARENTES.
1)15-(3+6)-1=
15-9-1=
15-10= 5
  
2)8-3:(2+1)+2.4=
8-3:3+8=
8-1+8=
7+8=15

3) (6.8):24+5-2.(3.2)=
48:24+5-2.6=
2+5-12=
7-12= -5
 4)3+2.(18:6+4)-10=
3+2.(3+4)-10=
3+2.7-10=
3+14-10=
3+4= 7
 5)2+[(5.2):2-(4.0.2)]=
2+[10:2-0]
2+5= 7

6)[25-(4.2)]+[1+27]=
[25-8]+28=
17+28=45

 7)36+2.[16-2.(8-3.1)]-9.5=
38.[16-2.(8-3)]-45=
38.[16-25]-45=
38.-9-45=
-342-45= -387
  8) {32-[5+(3.7-4)]}:5+9.2-(64-60).5=
{32-[5+(21-4)]}:5+18-4.5=
{32-[5+17]}:5+18-20=
{32-22}:5-2=
10:5-2=
2-2= 0
 
9)33+{2.7[6+(10-2.4)+1]+16}-49+1=
33+{14[6+(10-8)+1]+16}-48=
33+{14[6+2+1]+16}-48=
33+{14 [9]+16}-48=
Nessa conta falta um sinal entre 7[6
 Fica o 10.