Primer tarea

1)

(2)(3)(-5)(-2)(3)(-7)(8)=10.080
procedimiento:

(6)(10) (-21) (8)
(60) (168)= 10.080

2)

(5)(-5)(3)+2+4-7-12+45-33+75=149
procedimiento:

(-25) (3) 75+6 -19+12 +75
81-7 +75
74+75=149

3)

-134-12+13+54-65+67(2)(-3)(4)=5.160
procedimiento:

+146+67+2(-6)(4)
213-12(4)
215(-24)=5.160

4)

12-44+36-76+89-55+243-74=131
procedimiento:

-32-40+34+169
-72+203=131

5)

(2)(3)(-4)(5)(-6)(7)(-8)(9)(0)=-31.488
procedimiento:

(6)(-20)(-42)(-72)(0)
(-120)(+2.624)=-31.488

6)

(12/5)(6/3)+(4/9)(8/11)=7.668/1.485
procedimiento:

(72/15)+(36/99)=7.128+540/1.485=7.668/1.485

7)

14/3+15/2-6/4=32/3
procedimiento:

28+45/6=73/6
73/6-6/4=292-36/24=256/24
256/24=128/12=64/6=32/3

8)

(((12/5)(15/4)/(13/7)(16/9))(-5))+1/2=21.575/10.400
procedimiento:

(170/20)/(208/63)=(10.710/4.160)
(10.710/4.160)-(5/5)=53.550-20.800/20.800=32.750/20.800
(32.750/20.800)+1/2=65.500+20.800/41.600=86.300/41.600=43.150/20.800=
21.575/10/400

9)

(13/22)/(43/15)-16/7=13.771/6.622
procedimiento:

(195/946)-16/7=(1.365-15.136/6.622)=13.771/6.622

10)

((9/8)(8/6)/(25/4))+((13/45)(45/2))-16/4=42.795/675
procedimiento:

(72/48)/(25/4)=288/1.200
(13/45)(45/2)=585/90
(288/1.200)+(585/90)=25.920+702.000/108.000=727.920/10.800
(727.920/10.800)-16/4=2.911.680-172.800/43.200=2.738.880/43.200=1.369.440/21.600=
684.720/10.800=342.360/5.400=171.180/2.700=85.590/1.350=42.795/675

11)

(33/17)(45/12)+3/5-18/7+16/9-25/5=
procedimiento:

1.485/208
3/5-18/7=21-90/35=-69/35
16/9-25/5=80-225/45=-145/45
1.485/200+-69/35=51.975-13.800/38.175=38.175/7.000+-145/45=
1.717.875-1.015.000/315.000=702.875/315.000