Question

6.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[126+10x(24+24:2-6)]}-42600.

Answer 1

Răspuns:

Explicație pas cu pas:

a) )32:16+{76-2x[(20+4x5):5]-2x6} =

= 2+{76-2·[(20+20):5]-12] =

= 2+{76-2·(40:5) -12} =

= 2+[76-2·8-12] =

= 2+(76-16-12) =

= 2+48 = 50

b) (3+6+9+12+15+18):(1+2+3+4+5+6) =

= 3·(1+2+3+4+5+6):(1+2+3+4+5+6) = 3

c) 3+10x{3+10x[126+10x(24+24:2-6)]}-42600 =

= 3+10·{3+10·[126+10·(24+12-6)]} - 42600 =

= 3+10·{3+10·[126+10·30]} - 42600 =

= 3+10·[3+10·(126+300)] - 42600 =

= 3+10·(3+10·426) - 42600 =

= 3+10·4263 - 42600 =

= 3+42630 - 42600 =

= 42633 - 42600 = 33