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1.Calculati:
a)[(8:9*2-7)*3]:(8*4-189:2-2)=
b)[(18*4-81:9):7]:(128+864:8-227 )+309:3=
c)12000-350:5+45:3+[1985-(75:5+24)*35 ]*15=
d)600+280:4-[680:2+4*(30+12+18)]=
Repede va rogg!!
Dau coroanaaa!!