Răspuns:
1) 1,3 dm =0,13 ,m
4,72 km cub =472 dam cub
2)Perimetru =18×2+5×2=36+10=45
Aria=45×45=2,025
3)8×4=32
Aria=32×32=1,024
4)2,5+3,2-150=25000+320000-150=344850
123500+0,00427+0,0545=1235+000042,7+005,45=00048,15
5)54,8×2=109,6
Aria=12012,16
Coroana Plizz