resume math jan 2010

Mathématique+:+résumé+
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Chapitre+1+:+introduction+
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Chapitre+2+:+arithmétique+
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89 =64 +16 +8+1=26+24+23+20
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389 ÷1037 =364 ÷1037
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389 ÷1037 =630 ×851 ×339 ×3
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389 ÷1037 =1017
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⇒378 =224 ×1+154 ⇒pgcd 224,154
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⇒224 =154 ×1+70 ⇒pgcd 154,70
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⇒154 =70 ×2+14
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⇒pgcd 70,14
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