Question

Calculează:
100-10x[10-10x(10-10)]=
(25:5+7x19):2+[23x10-(16x2x2+9)]=
95-[25:45:9)+(36:9x3-6)]+85:5=
(92:2+128:2)-[(98:2-36:2)x6]:2=​

Answer 1

Răspuns:

0…231…e greșit...17

Explicație pas cu pas:

100-10×[10-10×(10-10)]=

100-10×(10-10×0)=

100-10×(10-0)=

100-10×10=

100-100=0

(25:5+7×19):2+[23×10-(16×2×2+9)]=

(5+133):2+[23×10-(32×2+9)]=

139:2+[23×10-(64+9)]=

139:2+(23×10-73)=

139:2+(230-73)=

139:2+157=

(69.5)+157=

74+157=

231

95-[25:45:9)+(36:9×3-6)]+85:5=ai scris greșit, scuze!

(92:2+128:2)-[(98:2-36:2)×6]:2=

(46+64)-[(49-18)×6]:2=

110-(31×6):2=

110-186:2=

110-93=17