Fill in the following numbers: 1,1,2,3,5,8,13, (), 34,55

twenty-one

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1. Regular filling: 3 / 20, 5 / 34, 8 / 55, 12 / 83 Fill in: 3 / 20, 5 / 34, 8 / 55, 12 / 83, (/) I hope the answer is not 118 / 17 I can see that the price of each item is 0.15
2. 20/3,34/5,55/8,83/12,. What should be behind it
3. A column of fractions: 3 out of 20, 5 out of 34, 8 out of 55, 12 out of 83. What's the next, the nth
4. 20.24.55.83.[ ]
5. 3 5 8 12 () 20 24 55 83 () fill in the blanks according to the rules
6. 24 of 33 + 19 of 66
7. Four fifths, two fifths, one fifths (), one twentieth, (), ()
8. Find a rule: five quarters, two fifths, one fifths, one twentieth, one twentieth 2 / 3, 1 / 2, 3 / 2, 9 / 4, (), ()
9. Four fifths, two fifths, 0.2, (), one twentieth
10. 24 points () = () 21 points = () 15 points = 16 points () = 3 points of 8
11. Find the rule 0,1,3,12, Urgent! Process!
12. Observe the following figures and their corresponding formulas, and calculate 1 + 8 + 16 + 24 + according to the rule you found +The result of 8N (n is a positive integer) is () A. （2n+1）2B. （2n-1）2C. （n+2）2D. n2
13. As shown in the figure, observe the figure and its corresponding formula, and calculate 1 + 8 + 16 + 24 + according to the rule you found +The result of 8N (n is a positive integer) is______ ．
14. According to the rule you found, the result of calculating 1 + 8 + 16 + 24 +. + 8N (n is a positive integer) is (expressed in an algebraic expression containing n)
15. As shown in the figure, observe the figure and its corresponding formula, and calculate 1 + 8 + 16 + 24 + according to the rule you found +The result of 8N (n is a positive integer) is______ ．
16. 1 + 8 = 3, 1 + 8 + 16 + 5, 1 + 8 + 16 + 24 = 7, 1 + 8 + 16 + 24 + ··········· + 8N (n is a positive integer)
17. Observe the following figures and their corresponding formulas. According to the rule you found, use n to represent 1 + 8 + 16 + 24 + +8N (n is a positive integer)______ ．
18. What is the result of 1 + 8 + 16 + 24 +. + 8N (n is a positive integer)?
19. Observe the following figures and their corresponding formulas. According to the rule you found, use n to represent 1 + 8 + 16 + 24 + +8N (n is a positive integer)______ ．
20. Find the law of Mathematics (2,3), (10,6), (20,11), (9,)