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ຂຽນເມື່ອ ຂຽນເມື່ອ: ມ.ນ.. 31, 2010 | ມີ 18 ຄຳເຫັນ ແລະ 0 trackback(s)

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

 

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