[الاستاذ على الدين يحيى]

عجائب الرقم ( 5 ) :

8 × 5 = 40

88 × 5 = 440

888 × 5 = 4440

8888 × 5 = 44440

88888 × 5 = 444440

888888 × 5 = 4444440

8888888 × 5 = 44444440

88888888 × 5 = 444444440

888888888 × 5 = 4444444440

8888888888 × 5 = 44444444440