Oblicz w pamięci:
a) 6*(-9)=
b) (-4)*1/2=
c) (-10)* 1,5=
d) (-2/3)*(-2/5)=
e) (-18):3=
f) 2,2:(-2)=
g) 0,8*(-5)=
h) (-9)*(-2/3)=
i) (-3):(-1/3)=
proszę szybko dam naj
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a -54
b -2
c -15
d 4/15
e -3
f -1,1
g -4
h 6
i 1