👤

4. Calculati:
a) (-2-3+8+2+3):(-2)
b) -2 -2.(-2)-(-2+2):(-2) **** ;
c) (-10).[(-3)' +(-2)* +(-2020):20]
d) (-2)":2® – 3-4-2-2-[(-3)* : (-3)* – 2]