Fill in the number of safety rules: 1 / 2, 8 / 13, 21 / 34, (), (), ()
1 / 2, 3 / 5, 8 / 13, 21 / 34, (55 / 89), (144 / 233), (377 / 310)
The sum of the numerator and the denominator of the previous fraction is the numerator, and the sum of the numerator and the previous denominator is the denominator
RELATED INFORMATIONS
- 1. Is the result of 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 +. + 2007 odd or even
- 2. The five numbers are 24:00: 1, 13 7 13 8 29 2, 17 6 30 23 26 3, 14 29 3 6 19 4, 7 19 14 17 21 5, 19 21 23 15 11
- 3. According to the following rule, form a number table with positive integers, then which row and number is 2008 in the table 1;2,3;4,5,6;7,8,9,10;………………
- 4. What is the fifth number in line 10? What is the fifth number in line 200? one 2、3 4、5、6 7、8、9、10 11、12、13、14、15 ……
- 5. Observe the number table and fill in the "mouth" in the number table one 1 -1 1 -2 1 1 -3 3 -1 1 -4 6 -4 1 1-5 port-10 5-1 1-6 ports-20 15-6 1 Why? Why do you fill in this way?
- 6. A number is not only a multiple of 3, but also a multiple of 5 and 7. The minimum number is ()
- 7. A number is not only a multiple of 3 but also a multiple of 6. What is the minimum number? Papers due on Monday
- 8. What is the multiple of a number? How to find the multiple of six? What are the characteristics of the multiple of a number? What are the characteristics of the multiple of 2, 3, 5, 5?
- 9. How many numbers are there that are multiples of both 3 and 5 within 100
- 10. , fill in 26 27 30 35 () () 1.6.7.12.13
- 11. Observe the numbers - 1, 2, 7, 14, 23, 34 According to this law, the nth number is______ .
- 12. Observe the numbers - 1, 2, 7, 14, 23, 34 According to this law, the nth number is______ .
- 13. Divide positive even numbers into arrays: (2), (4,6), (8,10.12), (14.16.18.20) What is the sum of the numbers in group n?
- 14. The first line is 1. The second line is 2, 3 and 4. The third line is 3, 4, 5, 6 and 7. The fourth line is 4, 5, 6, 7, 8, 9 and 10. Q: what's the sum of line 200?
- 15. Arrange the positive integers into the following table according to certain rules: the first line 1, the second line 2 3, the third line 4 5 6, the fourth line 7 8 9 10. What's the 12th in line 2002?
- 16. Observe the following table: the first line 1, the second line 1 2 1, the third line 1 2 4 2 1, the fourth line 1 2 4 8 4 2 1 According to the above arrangement rule, the sum of all numbers in the nth row in the sequence table is_________ . First line 1 Second line 1 2 1 The third line 1 2 4 2 1 The fourth line 1 2 4 8 4 2 1
- 17. The first line is 1, the second line is 2, 3, 4, the third line is 5, 6, 7, 8.9, and the fourth line is 10.11.12, 13, 14, 15, 16
- 18. Natural numbers are arranged in the following table according to certain rules. What is the fifth book on line 60? one 3 5 7 9 11 13 15 17 …… Want to have the train of thought that solves a problem and calculate formula! Had better say of compare easy to understand
- 19. Arrange the natural numbers starting from 1 in the following order one 2 3 4 5 6 7 8 9 10 The first number in line n is The last number of N rows is The sum of the numbers in line n is
- 20. The natural numbers of 1-299 are arranged as follows 1 2 5 10 17 26 37... 4 3 6 11 18 27 38... 9 8 7 12 19 28 39... Which numbers are 5 and 13? Who and whose numbers are 100? What are the rules?