[إبراهيم سلامة]

3682 = (س × 100 ) + 82
س × 100 = 3682 – 82 = 3600
س = 3600 ÷ 100 = 100


5823 = ( س × 10 ) + 3
س × 10 = 5823 – 3 5820
س = 5820 ÷ 10 = 582


9176 = ( س × 1000 ) + 76
س × 1000 = 9176 – 76 = 9100
س = 9100 ÷ 1000 = 9.1