Workout 6+4= dash (mod7) using the dial
Mathematics
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Workout using the dial.
Fanya nyongeza ya namba.
Tunahitaji kuongeza 6 na 4.
Tafuta salio (remainder) baada ya kugawanya kwa 7.
Sasa tunagawanya 10 kwa 7 ili kupata salio.
Hii inamaanisha kwamba 10 ni sawa na 3 katika moduli 7.
Kwa kutumia dial (saa ya moduli 7), unaweza kuanza kwenye namba 6, kisha usogeze hatua 4 kulingana na mwelekeo wa saa.
Kuanzia 6:- Hatua ya 1 inakupeleka 0 (kwa sababu 6+1=7, ambayo ni 0 mod 7)
- Hatua ya 2 inakupeleka 1
- Hatua ya 3 inakupeleka 2
- Hatua ya 4 inakupeleka 3
Jibu:
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