1×8+1=9 12×8+2=98 123×8+3=987 1234×8+4=9876 12345×8+5=98765 123456×8+6=987654 1234567×8+7=9876543 12345678×8+8=98765432 123456789×9+9=987654321 ......................... 9 × 9 = 81 98 × 9 = 882 987 × 9 = 8883 9876 × 9 = 88884 98765 × 9 = 888885 987654 × 9 = 8888886 9876543 × 9 = 88888887 98765432 × 9 = 888888888 987654321 × 9 = 8888888889 من عجائب الرقم 9 أيضاً ما نلاحظه هنا : 123456789× 9 = 1111111101 12345678 × 9 = 111111102 1234567 × 9 = 11111103 123456 × 9 = 1111104 12345 × 9 = 111105 1234 × 9 = 11106 123 × 9 = 1107 12 × 9 = 108 1 × 9 = 09 أيضاً : 9×0+1=1 9×1+2=11 9×12+3=111 9×123+4=1111 9×1234+5=11111 9×12345+6=111111 9×123456+7=1111111 9×1234567+8=11111111 9×12345678+9=111111111 عجائب الرقم 8 و 9 0×9+8=8 9×9+7=88 98×9+6=888 987×9+5=8888 9876×9+4=88888 98765×9+3=888888 4 98765×9+2=8888888 9876543×9+1=88888888 98765432×9+0=888888888
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