Răspuns
Explicație pas cu pas:
384*29=
384*(20+9)=
7680+3456=11.136
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608*54=608*(50+40=(608*50)+(608*4)=30400+2432=32.832
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292*307=292*(300+7)=(292*300)+(292*7)=87600+2044=89.644
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308*205=308*(200+5)=(308*200)+(308*5)=61.600+1.540=63.140
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