Posted by JD on Sunday, August 26, 2007 at 5:34pm.
what is 999999999999999999 times 9999?

math  Ms. Sue, Sunday, August 26, 2007 at 5:40pm
What do you think the answer is? We'll be glad to check your answer if you post it here.

math  Count Iblis, Sunday, August 26, 2007 at 5:44pm
999999999999999999 =
10^18  1
9999 = 10^4  1
999999999999999999 * 9999 =
(10^18  1)* (10^4  1) =
10^22  10^18  10^4 + 1
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