Friday, February 17, 2006
一加一是王, 再加日是旺
數學是科學之母
3 x 37 = 111
6 x 37 = 222
9 x 37 = 333
12 x 37 = 444
15 x 37 = 555
18 x 37 = 666
21 x 37 = 777
24 x 37 = 888
27 x 37 = 999
3 x 37 = 111
6 x 37 = 222
9 x 37 = 333
12 x 37 = 444
15 x 37 = 555
18 x 37 = 666
21 x 37 = 777
24 x 37 = 888
27 x 37 = 999
Nice one:
111,111,111 x 111,111,111 =12,345,678,987,654,321
Trapeze:
1 x 9 + 2 = 111
111,111,111 x 111,111,111 =12,345,678,987,654,321
Trapeze:
1 x 9 + 2 = 111
2 x 9 + 3 = 1111
23 x 9 + 4 = 11111
234 x 9 + 5 = 111111
2345 x 9 + 6 = 1111111
23456 x 9 + 7 = 11111111
234567 x 9 + 8 = 111111111
2345678 x 9 + 9 = 111111111
1 x 8 + 1 = 9
1 x 8 + 1 = 9
12 x 8 + 2 = 98
123 x 8 + 3 = 987
1234 x 8 + 4 = 9876
12345 x 8 + 5 = 98765
123456 x 8 + 6 = 987654
1234567 x 8 + 7 = 9876543
12345678 x 8 + 8 = 98765432
123456789 x 8 + 9 = 987654321
0 x 9 + 8 = 8
9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888
9876 x 9 + 4 = 88888
98765 x 9 + 3 = 888888
987654 x 9 + 2 = 8888888
9876543 x 9 + 1 = 88888888
98765432 x 9 + 0 = 888888888
987654321 x 9 - 1 = 8888888888
9876543210 x 9 - 2 = 88888888888
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