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Denisanegura34
a fost răspuns

Efectueaza inmultirile dupa modelul dar:
Model:689×11=689×(10+1)=6.890+689=7579
Model:48×999=48×(1.000-1)=48.000-48=47.952
A)932×11=.....................=........................=........................;
B)63×99=.........................=.....................=.........................;
C)1.001×83=(1.000+1)×83=..................=....................

Răspuns :

a)932×11=932×(10+1)=9320+932=10252
b)63×99=63×(100-1)=630+63=693
c)1001×83=(1000+1)×83=830+83=913

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