Question

de rezolvat (A) [500-(3500:700x80-40x9)x(64:8)]:9-(72:6):(81:27)=?
B) 2x{350:[491-3x(125-78)]+350}=?               
C)150150-150x[19la putera2+(15+5la puterea3)]=?   va rog frumos dau coroana

Answer 1

[500-(5×80-360)×8]:9-12:3=

[500-(400-360)×8]:9-4=

(500-40×8):9-4=

(500-5):9-4=

495:9-4=

55-4=

51


2×[350:(491-3×47)+350]=

2×[350:(491-141)+350]=

2×(350:350+350)=

2×(1+350)=

2×351=

702

150150-150×[361-(196+64)=

150150-150×(361-260)=

150150-150×101=

150150-15150=

135000