1.Oblicz, pamiętając o kolejności wykonywania działań. a)121 : (-11) x 2 : (-22)=
b)144 : (-3) - 81 : (-27)=
c)547 x (-13) + (-621) : (-3)=
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a)121:-11 = -11x2 = -22:-22 = 1
b) 144:-3 = -48
81:-27 = -3
-48-(-3) = -48+3 = -45
c) 547x-13 = -7111
-621:-3 = 207
-7111+207 = -6904