Question

Efetoati:
a) 8×{2+10×[542+2×(2+2×542)]}
b) 6×[3+3×(4+4×225)]
c) (12×25-5×13)+1000÷8-100÷4
d) 6×[3+3×(4+4×225)]
e) 16+16×2
f) 9+3×457

Answer 1

a)8•{2+10•[542+2•(2+2•542)]}=
=8•{2+10•[542+2•(2+1084)]}=
=8•[2+10•(542+2•1086)]=
=8•[2+10•(542+2172)]=
=8•(2+10•2714)=
=8•(2+27140)=
=8•27142=217136

b)6•[3+3•(4+4•225)]=
=6•[3+3•(4+1100)]=
=6•(3+3•1104)=
=6•(3+3312)=
=6•3315=
=19890

c)(12•25-5•13)+1000:8-100:4=
=(300-65)+125-25=
=235+100=
=335

d)este aceeași ca la b

e)16+16•2=16+32=48

f)9+3•457=
=9+1371=
=1380