Odpowiedź:
a) 2,5 • 6π = 15π
b) 3,4π + 2,2π = 5,6π
c) 18π/9 = 2π
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Odpowiedź:
a) 2,5 • 6π = 15π
b) 3,4π + 2,2π = 5,6π
c) 18π/9 = 2π