Question

6. Calculaţi:
a) {[1200 (8-200:25)+36]- 3096 : 387}: 2²;
.
b) 132 +5 (2316: 579 + [40+23 (24.52: 10-2².32)] 5} + 11;
c) 2 [33-24:3 (148:37+12)]-882: 49;
d) [(2².7.2:14-27:33): 1+524: 131]-6-6²;
e) 1600:4:
[3-70-(2-45-3²-2³-5-3:12):5³ 2² +95 -2]. 12.




Urgent ex 6

Answer 1

Explicație pas cu pas:

a) {[1200 (8-200:25)+36]- 3096 : 387}: 2²=

={[1200 (8-8)+36]-8}:4= [(1200×0+36)-8]: 4=

=(36-8): 4= 28:4=7 ;

b) 132 +5 {2316: 579 + [40+23 (24×52: 10-2².32)] 5} + 11= 132 +5 {4+[40+23 (1248: 6×32)] 5}=132 +5 {4+[40+23 (208×32)] 5}= 132 +5 [4+(40+23×6656)×5]= 132 +5 [4+(40+153088)5]=

=132 +5 (4+153128*5)=132+765644=765776

c) 2 [33-24:3 (148:37+12)]-882: 49= 2 [33-8 (4+12)]-18= 2 (33-8×16)-18=-190-18=-208

d) [(2².7.2:14-27:33): 1+524: 131]-6-6²=

=[(4.7.2:14-27:33)+4]-6-36=[(56:14-27:33) +4]-42=

=[(4-0,18)+4]=0,955

e) 1600:4:[3-70-(2-45-3²-2³-5-3:12):5³ 2² +95 -2]. 12=400:[3-70-(2-45-9-8-5-3:12): 125×4-2]=

=400:[(3-70+65,25): 500-2]= 400: 1,25:500-2=-1,36