Question

Calculati: a) 32:16+{76-2x[(20+4x5):5]-2x6}; b) (3+6+9+12+15+18):(1+2+3+4+5+6); c) 3+10x{3+10x[3+10x(3+10x3)-3]-3}-3.

Answer 1

a) 2+{72-2[40:5]-12}
    2+{72-2x8-12}
    2+{72-16-12}
    2+68=70
b) Aduni nr din prima paranteza si o sa-ti dea 63 si la a doua tot la fel le aduni si iti da 21 apoi faci 63:21=3
c) 3+10x{3+10[3+10x33-3]-3}-3
    3+10{3+10 x 330 -3}-3
    3+10 {3+3300 - 3}-3
     3+10x3300 -3= 330000