Odpowiedź:
a) 32- 42 + 15 = -10 + 15 = 5
b) 5 - 8 + 2 = -3 + 2 = -1
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Odpowiedź:
a) 32- 42 + 15 = -10 + 15 = 5
b) 5 - 8 + 2 = -3 + 2 = -1