November 2018 1 15 Report

zad.3 oblicz a) (-3)-1= (-3)+(-1)= b) 2-4= 2+(-4)= c) (-8)-7= (-8)+(-7)= zad.4 (-5)-9= (-11)-2= 7-10= (1)-(-4)= (-9)-(-3)= 13-(-7)=


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