Oblicz w pamięci :
a)56:7= 56:(-7)= -56:7= 56:(-7)=
b)48:6= 48:6= -48:6= -48:(-6)=
c)81:9= 81:(-9)= -81:9= -81:(-9)=
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b)48:6= 8 48:6= 8 -48:6= -8 -48:(-6)=8
c)81:9= 9 81:(-9)= -9 -81:9= -9 -81:(-9)=9