a)-6*2=-12
b)-12*[2-3]=-12-12=-24
c)3/4*(-4/5)-5/2*(-24/100)=3/5+3/5=6/5
d)[2/5-(-4/10)*(-100/12)]:[48]=[2/5-10/3]:48=[6/15-50/15]:48=-44/15*1/48=-11/180
e)1,5-1,5*0= 1,5 =-1,2
-1,25 -1,25
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a)-6*2=-12
b)-12*[2-3]=-12-12=-24
c)3/4*(-4/5)-5/2*(-24/100)=3/5+3/5=6/5
d)[2/5-(-4/10)*(-100/12)]:[48]=[2/5-10/3]:48=[6/15-50/15]:48=-44/15*1/48=-11/180
e)1,5-1,5*0= 1,5 =-1,2
-1,25 -1,25