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a) -12:6 *(-4): 2 = -2 * (-4) : 2 = 8 : 2 = 4
b) -6 *9 - (-36) :4 = - 54 + 36 : 4 = -54 + 9 = -45
c) -17 *3 + 7 * (-13) : (-7) = -51 + (-91) : (-7) = -51 + 13 = -38
d) -2 1/2 * 8 - (-5) * (2/15) = -5/2 * 8 - (-2/3) = -20 + 2/3 = - 19 1/3
Zad 2
36 + (-47) = -11
ODP. A