perdone profe la tardanza apenas termine

1-3+4+5-6-7-4+9=43+4+5+9=21-6-7-4=1721-17=4



2- -6+4-6+2-9-8+2+3+6-8-12-43-67=-754+2+2+3+6=17-6-6-6-8-8-12-43=-9217-92=-75



3-(2)(-12)(3)(3)(-2)(1)(3)=1296(-24)(3)(-72)(3)(-216)(-2)(432)(3)R=(1296)


4. (-2)(3)(1)(-4)(5)(6)(-7)(-8)= 40320(-6)(1)(-6)(-4)(24)(5)(120)(6)(720)(-7)(-5040)(-8)(40320)



5. -4+5-6+7-8+9-12+24-33(2)(-3)(4)(5)= -61201+1+1-12-3315-33(-18)+(33)(-51)(2)(102)(-3)(-306)(4)(-1224)(5)(-6120)







6. (3/4)+(5/9)= 1 11/363/4+5/9=27+20/36 47/36= 1 11/36




7. (6/2)-14/4)= 1/2 24-28/8= 4/8 =2/4



8. (3/5)(12/3) - (4/7)(6/11)=804/38536/15 - 24/77 =2772 - 360/1155 =2412/1155



9 1.3+3+1+0.4+0.75-1617= -1615.8





10 3.6+4.5+8.33-1.5-14.2= 8.83


11 4.6/2.09+1.6*1.25= 4.626



12 0.2*8/3.57*2.16/1.714+1.5= 2.064800