tarea

1) (2)5+3(-6)-(2)(4)5=-48 2)((15)/3)+2(18)-6-3-4=28 3)(-2)(-4)(-5)(-3)(1)(7)=840
4)(2)(-5)(11)(-2)(8)(-5)=8800 5)2+3-5-6+7+18-39-65=45 6)(((5)(3)/3)+2-5(8)-4(-4)=53
7)((49)/7)(-6)+2-3+4(5)(-2)=13