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數子接龍

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
56 = 7 x 8
20 = 5 x 4
42 = 6 × 7
18 = 3 × 6
27 = 3 ×9
28=4x7
30 = 5 × 6
60=5x12
52 = 4 × 13
68=2x34
32=4x8
12 = 4 × 3
36=4x9
12=9+3
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