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What mathematics knowledge does the new year have?
Calculation: 2005×20062006-2006×200520052. What numbers should be used for the seven Chinese characters "Happy New Year, Happy New Year" to make the following formula hold? Happy New Year's Day × OK = Happy New Year's Day. I hope 3. The seven-digit "2006" can be divisible by 4, 9 and 25 at the same time. What is this seven-digit number? 4. If the clock now shows 14 hour, then after the minute hand rotates 2006 times, the clock will be

On New Year's Day, Xiaoming played a game of "translating numbers into Chinese": he translated six Chinese characters "I like reading math books" in the following formula into mathematics, and the formula was established. Different Chinese characters represent different numbers. Can you translate them? I love reading books × math books = math books × math books × I love reading books. The six Chinese characters "I love reading math books" in the formula make the formula established. Different Chinese characters represent different numbers. Can you translate them? I love reading books × math books = math books × math books × I love reading books. On New Year's Day, Xiao Liang played a number-changing game: he wanted to change the word "Le" in the nine Chinese characters "Happy New Year to readers" in the following formula into the number "2", and the remaining eight Chinese characters into eight consecutive even numbers (unlimited digits), so that the formula was established. But he can't do that. Change it to eight even odd lines? This+publishing+desire+readers+Chinese New Year+fast+music =20 10.3. At the New Year's party, Kobayashi asked everyone to make a formula. She asked that the symbol "+"or ""be added before the continuous natural number 1, 2, 3, …, 20 10. Xiao Fang and Xiao Li play the game of number selection: the sum of natural numbers 1, 2, 3, …, 20 10 is odd. Now, any n of these 20 10 numbers (n