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Mathematics 16 Online
OpenStudy (anonymous):

1 * 8 + 1 = 9 12 * 8 + 2 = 98 123 * 8 + 3 = 987 1234 * 8 + 4 = 9876 12345 * 8 + 5 = 98765 123456 * 8 + 6 = 987654 1234567 * 8 + 7 = 9876543 12345678 * 8 + 8 = 98765432 123456789 * 8 + 9 = 987654321 Why is is like that?

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