The Mathematical Garden

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Games
Black and White
HEX
Magic
Mark Six
Recursion, Games and Strategy
SIM

A Magic Game

  1. Think of a 'two-digit' number (e.g.78)

  2. Subtract the two digits from the number and get the 'code'.
    (e.g. the code in this case is 78-7-8=63)

  3. Find the symbol corresponds to the code in the Table below.

  4. Memorise the symbol and then press 'Ready ?'.
    (What Did you find? Can you explain it?)

  5. Hint: (10x +y) - (x+y).

99I 98f 976 96S 95l 946 93N 92J 91x 90{
89a 88m 87i 86z 85u 846 83T 82N 81l 80n
79l 78z 77f 76d 75S 74b 73I 72l 71x 70a
69M 68b 67N 66U 65N 64z 63l 62J 61O 60o
596 58a 57T 56M 556 54l 53M 52a 51U 50f
49U 48h 47M 46h 45l 44i 43f 42h 41b 40R
39M 38{ 37^ 36l 35x 34x 33z 32z 31I 30i
29h 28h 27l 26M 25x 24a 23a 22T 21l 20v
19{ 18l 17m 16T 15S 14o 13T 12z 11^ 10h
9l 86 7U 6U 5R 4N 36 2S 1x 0l
Ready ?
Department of Mathematics, HKU, 2010