efectueaza dupa model:

*model*
2×5=10
4×5=2×2×5=2×5=10
= 10+10=20
8×5=2×4×5=2×10=20
=20+20=40

*exercițiile*
1.
2×3=_____
4×3=_________________________________________
8×3=_________________________________________

2.
2×4=_____
4×4=_________________________________________
8×4=_________________________________________
[tex]va \: rog \: repede[/tex]