Kita sepakat menggunakan sistim angka 10 dalam kehidupan sehari-hari. Tahukah anda bahwa di dunia ini ada juga sistim berhitung 4 angka, 5, 6, 8, 12, 15, 16,20, 24, 27, 32, 60…..dan beberapa lagi.
in INFOGRAFIS
Sistem Angka yang Kita Sepakati
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