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Fill in the blanks according to the rules Two out of seven, three out of nine, four out of eleven 2 out of 1, 4 out of 4, 6 out of 9, 8 out of 16, [], [], 14 out of 49
The first is 5 out of 13, 6 out of 15, 7 out of 17
The second is 25 out of 10, 36 out of 12
My university major is mathematics, the answer is certainly right, give points!
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- 1. 3 / 89 1 / 14 12 / 79 12 / 37 16 / 23 3 / 2 () please find out the rule and fill in the number? Find out what the law is. It's six years of math,
- 2. Find the law: 389114127912371623, 32______ ．
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- 6. Write 1 ~ 1999 natural numbers from left to right on a long enough note, and then point a comma at each three digit number from left to right: as follows 123,456,789,101,112…… The number before the 100th comma is ()
- 7. On a long enough note, write the natural numbers 1 to 500 from left to right, and then point a comma every three numbers from left to right, such as 123456789101112 The number before the 100th comma is
- 8. Find the law 1 1 2 3 5 α 13 21 34 β 89 α =? Find the law 1 1 2 3 5 α 13 21 34 β 89 α=?β=?
- 9. Find the law, the faster! Give more. 1,1,2,3,5 {} 13,21,34 {} 89
- 10. 1,2,5,13,34, () to find the law
- 11. 1 + 3 = 2 / 2 (1 + 3) * 2,1 + 3 + 5 = 2 / 2 (1 + 5) * 3,1 + 3 + 5 + 7 = 2 / 2 (1 + 7) * 4,1 + 3 + 5 + 7 + 9 = 2 / 2 (1 + 9) * 5 1 + 3 = 2 (1 + 3) * 2,1 + 3 + 5 = 2 (1 + 5) * 3,1 + 3 + 5 + 7 = 2 (1 + 7) * 4,1 + 3 + 5 + 7 + 9 = 2 (1 + 9) * 5, fill in the blanks according to the rule: 1 + 3 + 5 + 7 + ···· + 99 = () fast!
- 12. 8,5.4,2.7, () 1.12,2.24,4.48, () 10,4,1.6, () how to fill in?
- 13. Find the rule 2,2,4,12,48, ()
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- 16. 3.5.6.10.9.15 () ()
- 17. 2. 10, 4, 8, 8, 6, 16, 4, (), ()
- 18. The following set of numbers in regular order: 1, 2, 4, 8, 16. What should the number 2014 be?
- 19. The following set of numbers are arranged in regular order: 1, 2, 4, 8, 16. The 2014 number is ()
- 20. 1,-3,5,-7,9,11,-13…… What is the 100th number in this column?