Răspuns:
ex1
cilindru
cerc
cuboid
pătrat
ex2
a)31 zile
b)366 zile
ex3
a)4t 50kg > 450kg
b)1secol = 10decenii
2ore 30min < 230min
ex4
4 lei 75 bani
ex5
a)P=3×4=12cm
b)P=26cm×2+2dm×2=92cm
