Question

(3 + 6 + 9 + 12 + 15 + 18): (1 +2 +3 +4 +5 + 6);
+ 10 : {3+ 10 ·[3+ 10. (3 + 10 - 3) - 3] -3} - 3.​

Answer 1

Răspuns:

(3+6+9+12+15+18)÷(1+2+3+4+5+6)=

Explicație pas cu pas:

(18+12+15+18)÷21=

63÷21=3

+10÷{3+10×(3+10-3)-3}-3=+10÷{3+10×(13-3)-3}-3

=+10÷(3+10×10-3)-3

=+10÷(3+100-3)-3

=+10÷100-3

=0,1-3

=-2,9