有趣的數學（一）
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3 x 37 = 111
+ O2 l# F X+ j7 Q' a9 l 6 x 37 = 222
, s# _9 T# I: k+ q+ s: ] 9 x 37 = 333
3 p8 ^; [; {$ X 12 x 37 = 444
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15 x 37 = 555
3 ^& I( g+ t; V8 N' X 18 x 37 = 666
, K2 C: t) `0 P% `; Q% \9 h% B 21 x 37 = 777
" Y2 e; D3 E& |; u) p 24 x 37 = 888
+ R% v& z' Q1 I* k% T 27 x 37 = 999
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111.111.111 x 111.111.111 = 12.345.678.987.654.321
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1 x 9 + 2 = 11
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12 x 9 + 3 = 111
- w7 y; q- ~% ^+ ~( t7 [( x6 Q1 e 123 x 9 + 4 = 1111
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1234 x 9 + 5 = 11111
7 n) b% N# H- z, ?' a% |& P 12345 x 9 + 6 = 111111
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123456 x 9 + 7 = 1111111
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1234567 x 9 + 8 = 11111111
" {# |9 q: l" K 12345678 x 9 + 9 = 111111111
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1 x 8 + 1 = 9
3 K" V' ]9 O; S% z; J- Q2 F" g6 D 12 x 8 + 2 = 98
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123 x 8 + 3 = 987
% P. l% b0 g8 }& o0 U/ b( c 1234 x 8 + 4 = 9876
3 d9 C5 |, a4 m7 ^ 12345 x 8 + 5 = 98765
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123456 x 8 + 6 = 987654
, T" U: }7 ]6 `( n& s5 V 1234567 x 8 + 7 = 9876543
. w" m2 A+ {2 @" t. H( u n 12345678 x 8 + 8 = 98765432
' l+ g& z$ ?! d! J% f3 O/ C 123456789 x 8 + 9 = 987654321
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" S8 ]- a; Z& X* q' ^ 0 x 9 + 8 = 8
- g) i# _2 X6 _& V1 l" T. m! R 9 x 9 + 7 = 88
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98 x 9 + 6 = 888
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987 x 9 + 5 = 8888
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9876 x 9 + 4 = 88888
; j/ S+ ^+ O0 `3 G 98765 x 9 + 3 = 888888
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987654 x 9 + 2 = 8888888
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9876543 x 9 + 1 = 88888888
h2 r1 b2 m0 m$ h; z% Q$ P 98765432 x 9 + 0 = 888888888
% e# j! o4 U4 n" \- t( q! A 987654321 x 9 - 1 = 8888888888
0 p; S$ y" v' c9 h! Q8 E- f 9876543210 x 9 - 2 = 88888888888
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