3. Oblicz:
a) (-13+8) (-2) = (-5) · (-2) = 10
b)-3-(4,2-6,3)=
(1-8+21:3)-(8-15) =
c)
25-(-3)
d) -2.(15+8)=
e) (3 ²3-4) (6-3/²) =
Szybka odp . Daje naj !!