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(-0.25)² : (-⅛) : (-2)² - (-1000)⁰ =
= 0,0625 : (-0,125) : 4 - 1 =
= -0,5 : 4 - 1 = -0,125 - 1 = -1,125
kwadrat liczby ujemnej jest zawsze liczba dodatnia
kazda liczba do potegi zerowej jest 1
b)
[ (-0.5)³ + 2¼ ] : [ (-0.25) + (-2)² ] =
= (-0,125 + 2,25) : (-0,25 + 4) =
= 2,125 : 3,75 = 0,5(6)
c)
-(-5)² · 1/5₃ - (2.3 - 2½)² =
= -25 * (1/5)³ - (2,3 - 2,5)² =
= -25 * 1/635 - (-0,2)² = -5/127 - 0,4 = -5/127 - 2/5 =
= -25/635 - 254/635 = -279/635
d)
-4² - 0.4³ : (-0.64) - (½)⁰ =
= -16 - 0,064 : (-0,64) - 1 = -16 + 0,1 - 1 = -17 + 0,1 = -16,9
e)
-2² - (13 - 7²) - (-0.1)³ · 10³ =
= -4 - (13 - 49) - (-0,001) * 1000 =
= -4 - (-36) + 1 = -3 + 36 = 33