primer tarea 21/08/2009

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


-75+6-19+87
-69+68
=-1


-146+67+2(-24)
-133+67+22(-24)
-77(-24)=-1848


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


(6)(-20)(-42)(-72)
8-120)(3.024)
=-362.880


(24)(2)+(.4444)(.7272)
(4.8)+(.3231)
(4.8)+(.3231)
=5.1231


4.66+7.5-1.5
12.16-15
12.16-15
=10.66


(2.4)(3.75)/(1.8571)(.8421)(.5)+1/2
9/1.5638(-5)
9/-7.819+5
9/-7.319
=-1.2296


.5909/2.8666-2.2857
0.2061-2.2857
=-2.0796


(1.125)(1.333)/(6.25)+(.2888)(22.5)-4
1.4990/6.25+(2.888)(22.5)-4
0.2398+6.498-4
6.7378-4
=2.7378


(1.9411)(3.75)+0.6-25714+1.7777-5
7.2791-1.914-3.2223
5.3077-3.2225
=2.0854