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
