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Omvandla till bas $10$

Skriv talet med bas 10. Om redan stått i bas 10, hade den första siffran stått för hundratal. När talet står i bas 5 byts innebörden av "hundratal" från 102 till 52. Motsvarande sker för övriga siffror så att talet kan skrivas som summan i tabellen nedan.

Fempotenser 52 51 50
Vårt tal 2 4 3
Summan 252+451+350

Talet kan alltså skrivas i bas 10 som 252+451+350.

252+451+350

Förenkla potens

225+45+31
50+20+3
73

Därmed är .


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