dzialania na liczbach całkowitych
a) (-5)+7=
b )4-12=
c) (-13)+(-4)=
d) (-32):(-8)=
e) (-24)*2=
f) (-2) - (-1)=
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a) (-5)+7=2
b )4-12=-8
c) (-13)+(-4)=-17
d) (-32):(-8)=4
e) (-24)*2=-48
f) (-2) - (-1)= -1
a) (-5)+7= 2
b )4-12= -8
c) (-13)+(-4)= -17
d) (-32):(-8)= 4
e) (-24)*2= -44
f) (-2) - (-1)= -1
"-" i "-" daje "+"
"+" i "-" lub odwrotnie daje "-"
"+" i "+" daje "+"