數子接龍

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Rules:

1) Fill in 0123456789 into a, b an c 把0123456789 放入公式內
2) 0,1,2,3,4,5,6,7,8,9 can only use once數字只可用一次, 不能重覆

    a = b x c

Good example:

63 = 9 X 7 <-- use 3,6,7, and 9

Wrong example:

120 = 10 x 12 <--- 1, 0 and 2 are repeated 1,0 和2 這些數子已經重覆了