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有趣的魔術數字(放輕鬆ㄚ)例1: 1X1=1 11X11=121 111X111=12321 1111X1111=1234321 11111X11111=123454321 111111X111111=12345654321 例2: 1X9+2=11 12X9+3=111 123X9+4=1111 1234X9+5=11111 12345X9+6=111111 123456789X9+10=1111111111 例3: 7+9X9=88 6+98X9=888 5+987X9=8888 4+9876X9=88888 3+98765X9=888888 2+987654X9=8888888 1+9876543X9=88888888 例4: 9X9=81 99X99=9801 999X999=998001 9999X9999=99980001 99999X99999=9999800001 999999X999999=999998000001 9999999X9999999=99999980000001 例5: 1X8+1=9 12X8+2=98 123X8+3=987 1234X8+4=9876 12345X8+5=98765 123456X8+6=987654 1234567X8+7=9876543 12345678X8+8=98765432 123456789X8+9=987654321
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