August 2018 1 8 Report
Oblicz jak najprostszym sposobem :

a) 105 + (-7) + (-13) + 20
b) - 16 + 67 + (-10) + (-7) + 66
c) 2 i dwie piąte + (-4,1) + 7 i trzy piąte + (-5,9)
d) 4 ⁴₇ + 5,4 + (-1⁴₇) + (7,4)
e) -0,75 + 6,3 _ (-1,1) + (-¼) + (-6,3)

Pomóżcie. Daję NAJ ; *
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