Răspuns :
1) rezolvarea:
12:3kg=4kg
4kgx5kg=20kg
2)rezolvarea printr-un singur exercitiu :
(12:3kg)x5kg=
=4kgx5kg
=20kg
asa cred eu ca e.
12:3kg=4kg
4kgx5kg=20kg
2)rezolvarea printr-un singur exercitiu :
(12:3kg)x5kg=
=4kgx5kg
=20kg
asa cred eu ca e.