6. este greseala
(x+83):2 =197, x + 83 = 394, x = 311
7. 180 dm = 18 m
P = 12 + 12 + 18 + 18 = 60 m
Raspuns : 60, a.
8. 256 m³ = 256000 litri
Raspuns corect : B. 256000 litri
9. [tex] \frac{15}{48}+ \frac{5*2}{48}+ \frac{19}{48}+ \frac{19*2}{48}+ \frac{14}{48}= \frac{96}{48}=2 [/tex]
Raspuns corect: D. 2
