completează casetele libere!

Răspuns:
2486×3=(2000+400+80+6)×3
=2000×3+400×3+80×3+6×3
=6000+1200+240+18
= 7458
32 456×5=(30 000+2000+400+50+6)×5
=30 000×5+2000×5+400×5+50×5+6×5
=150 000+10 000+2000+250+30
= 162 280