Question

b) 100 - {62 - 3 x [12: (5: 5 + 3) + 48:4 - 11} x 5 + 1 =
c) {[5 : (2 x 3 – 1) + 14] : 15 + 3 : [1 + 2 x (45 : 15 - 2)]: 2
d) 5 x {55 x 5 -|(55 x 5 - 55 : 5) - 55 + 5]} =
e) 15 x 10 -98): 2 + 76] x 110 - 220}: 500 =
12. Calculează
a) {5 + 67 : [100 – (60 : 3 - 27 : 3) - 22]} x 48 =
-
+) {[(5 x 10 + 178) x 15 + 900]: 60} : 36 =​

Answer 1

Răspuns:

Explicație pas cu pas:

a) {5 + 67 : [100 – (60 : 3 - 27 : 3) - 22]} x 48 =

= {5+67 : [100 - (20-9)-22]} x 48

= [5+67 : (100- 11- 22)] x 48=

= (5+67 : 67) x 48

= (5+1) x 48= 6x48= 288

b) 100 - {62 - 3 x [12: (5: 5 + 3) + 48:4 - 11} x 5 + 1 =

= 100 - {62 - 3 x [12: (1+3) + 12-11]}+1

=100 - [62 - 3 x (12: 4+1)] +1

=100 - (62 - 3 x 4)+1

=100-(62-12)+1

=100-50+1

=51

c){[5 : (2 x 3 – 1) + 14] : 15 + 3 : [1 + 2 x (45 : 15 - 2)]: 2=

={[5 : (6-1) + 14] : 15 + 3 : [1 + 2 x (3-2)]} :2

=[(5:5+14) :15+3 : (1+2x1)] :2

={15 :15 +3:3 ) :2

=(1+1) :2=2:2=1

d) 5 x {55 x 5 -(55 x 5 - 55 : 5) - 55 + 5]} =

=5x [275- (275-11) -55+5]

=5 x (275-264 -55+5)

=5 x (11-55+5) =5 x (-39)= -195

e) {[(15 x 10 -98): 2 + 76] x 110 - 220}: 500 =

={[(150-98):2+76] x 110-220} :500=

=[(52:2 +76) x 110-220] :500

=[(26+76)x 110-220] :500=

=(102x 110-220) :500

= (11220 -220) :500=

=11000:500= 22