Aturan-2:1-ROUND UP atawa FROUND DOWN n manga umbul amun awn gudlis niya. 1) 5779 = 2) 9 843 = 3) 867 = 900 4) 91 = 90 5) 8 645 = 6) 892 = 900 7) 3029 = 8) 5789 = 6,000 9) 9035 = 10) 207 = Aturan 3: Basahun iban jawabun in piyangasubu.​