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Supergame010101
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Scrie si calculeaza, in doua moduri , expresii al carora rezultat este de doua ori mai mic , respectiv de patru ori mai mare decat al celor date ,dupa exemplu de mai jos.a)468+124 b ) 238+106 c ) 1000+500 . Calculat in doua moduri . VVAAA ROG DAU COROANA

Scrie Si Calculeaza In Doua Moduri Expresii Al Carora Rezultat Este De Doua Ori Mai Mic Respectiv De Patru Ori Mai Mare Decat Al Celor Date Dupa Exemplu De Mai class=

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Alexandranechip34amj
[tex]\text{a) Metoda 1: }(468+124):2=592:2=296\\(468+124)\cdot4=592\cdot4=2368\\\text{Metoda 2: }(468+124):2=468:2+124:2=234+62=296\\(468+124)\cdot4=468\cdot4+124\cdot4=1872+496=2368[/tex]

[tex]\text{b) Metoda 1: }(238+106):2=344:2=172\\(238+106)\cdot4=344\cdot4=1376\\\text{Metoda 2: }(238+106):2=238:2+106:2=119+53=172\\(238+106)\cdot4=238\cdot4+106\cdot4=952+424=1376[/tex]

[tex]\text{c) Metoda 1: }(1000+500):2=1500:2=750\\(1000+500)\cdot4=1500\cdot4=6000\\\text{Metoda 2: }(1000+500):2=1000:2+500:2=500+250=750\\(1000+500)\cdot4=1000\cdot4+500\cdot4=4000+2000=6000[/tex]

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