a) (-3) x (-2-10)-5

--------------------------

7-9


b) (-2)³ + 45; (-3²)



c) 15-(-2)x4 5-2

---------------- + --------

-11 + 4 2-3



Odpowiedź :

Odpowiedź:

a) -3 x -12 - 5 = 36 - 5 = 31. 7 - 9 = -2

b) -2³ + 45 : -3² = -6 + 45 : 9 = -6 + 5 = -1

c) 15 - -2 x 45 - 2 = 15 - -90 - 2 = 105 - 2 = 103

-11 + 42 - 3 = 31 - 3 = 28