Liczby wymierne - obliczenia.
a) 18 - (-5) + (-20) - [-(-13)] - (-27) - 100
b) -2,25 + (-1,5) - (-4,5) - [-(-5,25) + (-6 2/3)]
c) 2 - (-3,45) + (-7,15) - (-10,125) - 3,425
f) - {-[-(4) - 2,5] - (-7)} + [-(-3,2) - 4,2] + 0,75
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a) 18+5-20-13+27-100=50-133=-83
b)-3,75+4,5-5,25-6 2/3= -3 3/4+4 1/2-5 1/4-6 2/3=-15/4+9/2-21/4-20/3=-15/4+18/4-21/4-20/3=
-15/4-3/4-20/3=-45/12-9/12-80/12=-134/12=-11 1/6