👤

Calculează, folosind procedeul de calcul rapid:

63x11
120x11
430x11

230x11
360x11
450x11


Răspuns :

Răspuns:

63×11=63×(10+1)=63×10+63=693

120×11=120×(10+1)=120×10+120=1320

430×11=430×(10+1)=430×10+430=4730

230×11=230×(10+1)=230×10+230=2530

360×11=360×(10+1)=360×10+360=3960

450×11=450×(10+1)=450×10+450=4950