CALLCENTERCOLGO CALLCENTERCOLGO Matemáticas contestada b. (+4)-7)- (+2)+(+1) c. (+2)- (+8)+ (-5)-(-3) -(+1) d.(-1)+(-1)+(-5)-(+7+(-7) e.-5+(+1)-(-1)-1-(-3):(-3) f.-6-(-7)-(-6-2) 9.-2-(-15)-(8+7) h.-4-(+24)-(+1-9) -(-1-2) i. +7 +(-5)-(-7+2)-(+1-6) j.-6-[+7+(+1)-(-1)1