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rezolvati in 2 moduri. Fara "abagshsh "ca va dau raport​

Rezolvati In 2 Moduri Fara Abagshsh Ca Va Dau Raport class=

Răspuns :

Răspuns:

15·42+15·18=630+270=900

15(42+18)=15·60=900

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43·62-37·62=2666-2294=372

62(43-37)=62·6=372

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23·345-23·172=7935-3956=3979

23(345-172)=23·173=3979

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223·51+93·51=11373+4743=16116

51(223+93)=51·316=16116