Question

resolva as expressões numericas A: 60:{2.[-7+18:(-3+12)]}-[7.(-3)-18:(-2)+1) B: -8+{-5+[(8-12)+(13+12)]-10} C: 3-{2+(11-15)-[5+(-3+1)]+8} D: [-1+(2-5.6)]:(-5+2)+1 E: [√100-(2-8).2-24]:[2-(-3+2)] F: {[(8.4+3):7+(3+15:5).3].2-(19-7):6}.2+12

Answer 1

A) 60:{2.[-7+18:(-3+12)]}-[7.(-3)-18:(-2)+1)=
     60:{2.[-7+18:9]}-[-21+9+1]=
      60:{2. -5}-11=
       60: -10-11=
        60: -21= -2,85....

B) -8+{-5+[(8-12)+(13+12)]-10}=
     -8+{-5+[ -4+25]-10}=
     -8+{-5+21-10}=
     -8-4= -12

c) 3-{2+(11-15)-[5+(-3+1)]+8}=
    3-{2-4-[5-2]+8}=
    3-{2-4-3+8}=
    3+3=6

D) [-1+(2-5.6)]:(-5+2)+1=
     [-1-28]: -3+1=
     -29: -2= 14,5

E) [raiz de 100-(2-8).2-24]:[2-(-3+2)]=
     [raiz de 100+6. -22]:[2+1]=
     10-132:3=
      10-44= -34

F) {[(8.4+3):7+(3+15:5).3].2-(19-7):6}.2+12=
    {[35:7+6.3].2-12:6}.14=
    5+18.2-2.14=
    5+36-28=13