What is 1 + 11 + 111 + 1111
=1×4+10×3+100×2+1000=1234
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- 1. How about 1 + 11 + 111 + 1111
- 2. How about 1 + 11 + 111 + 1111 + n
- 3. Using the sum of general term, 1 + 11 + 111 + +111… The sum of 1n ones
- 4. Find the rules and fill in the numbers: 1250, 20625, 17125, 14, (), (), (), ()
- 5. Find the rule 2,5,11,23, (), ()
- 6. 2 5 6 11 23 () () find the law
- 7. The greatest common factor of 20 and 15, 36 and 9, 51 and 34, 18 and 90
- 8. 56×165÷(7×11)+144×13÷156 (28.8+28.5+28.7+28.1+28.6)÷5 41.2×8.1+11×9.25+537×0.19 Who is the quickest to give the reward! 1. Of course, I know the answer,
- 9. 1. 5 + 3 = 8; 8 = 56 / 7; 56-5 = 51. Is the answer correct? 2. Xiao Hua does an integer addition problem, regarding 3 as 8 and 9 as 6. The sum is 356. What's the correct answer? 356-68 = 288; 288 + 93 = 381
- 10. Simple calculation of 0.865 * 51% + 51 * 35.5% / 2 * 1 / 50 + 4.9% * 12 and 1 / 5 There must be a process! Online and so on!
- 11. 1+1+11.111.1111
- 12. 1 times 1, 11 times 11111 times 1111 times 1111, find the law
- 13. 1+1-1-1+1-1+11-111-1111+111+1÷111÷1÷1111÷1-1111÷1-11×11-11×1-1111-111+111=?
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- 16. From the perspective of climate, why is the Rio Summer Olympics held from August 15 to 21, 2016
- 17. Why is the 29th Summer Olympic Games held in Beijing in July and August (considering climate conditions) instead of September and October? Isn't it raining a lot in July and August
- 18. Climate characteristics of Beijing The climate and characteristics of Beijing?
- 19. Why are people so excited about China's successful bid for the Beijing Olympic Games?
- 20. 2008 ~ month ~ day ~ hour, the ~ th Summer Olympic Games opened in Beijing, the capital of China?