6. Oblicz: a) 10-6+8= 10-(6+8)= b) 10-5-6= (10-5)-6= c) 8-7-6= 8 (7-6)= d) 24:6 (-2) = : (6 (-2)) = e) -12 +4:2-8= (-12+4): 2-8= f) 11-8:4-10 = (118): (4- 10) =

to jest w ćwiczenia ​