من عجائب الأرقـام
الرقمين 8 و 5
8 × 5 = 40
88 × 5 = 440
888 × 5 = 4440
8888 × 5 = 44440
88888 × 5 =444440
888888 × 5 = 4444440
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العددين 99 و 1
99 × 1 = 99
99 × 2 = 198
99 × 3 = 297
99 × 4 = 396
99 × 5 = 495
99 × 6 = 594
99 × 7 = 693
99 × 8 = 792
99 × 9 = 891
99 × 10 =...