A group of numbers are arranged according to the rule of 0.5, 1.5, 4.5, then the fourth number is

RELATED INFORMATIONS

• 1. Press natural numbers by 1, 2, 3 Eight numbers in an unlimited line, and then Press natural numbers by 1, 2, 3 If the sum of the six numbers in the box is 432, what is the sum of the two numbers in the upper left corner and the lower right corner?
• 2. How to arrange the 9 numbers of 10.11.12.13.14.15.16.17.18 in the same way?
• 3. Put 11 / 12, 17 / 18 and 6 / 5 in descending order
• 4. 3 out of 4, 13 out of 16 and 5 out of 6, 11 out of 12, 15 out of 16 and 17 out of 18 in each group
• 5. Pyramid like number order, 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 What is the seventh number on line 200? Because you can't type it, you can make do with it. A comma is a column. I'm in a hurry. If I get it right, I'll get a lot of rewards. The score is a little less, but I can give you something else. First come first served! (by the way, it's better to have a process, but it's better if not.)
• 6. Arrange the odd numbers in the following order: 1 5 7 19 3 9 17…… 11 15…… 13…… 3 in the second row and first column; 15 in the third row and second column What's the row and column of 2007
• 7. All positive odd numbers are arranged as follows: 1 3 5 7 9 11 13 15 17 19...... find the number in the row 2011 There are N adjacent odd numbers in the nth row. Starting from the second row, the first number in each row and the last number in the previous row are adjacent odd numbers
• 8. 11 7 13 -- 15 12 8 from large to small
• 9. Please write down the following three numbers directly: (1) 2,4, - 6,8,10, - 12,14, () () （2）2、0、—2、—4、—6、—8、（ ）（ ）（ ） (3) 1. Negative half, two thirds, three quarters, four fifths, five sixths, ()
• 10. There is a series of numbers in regular order: - 1,2, - 3,4, - 5,6, - 7,8,... Q: what is the sum of the top 100 items in this series? (to calculate the formula process)
• 11. 1, - 12, 13, - 14, 15, - 16 According to certain rules, it is arranged as follows: first line 1, second line - 12 & nbsp; 13, third line - 14 & nbsp; 15-16, fourth line & nbsp; 17-18 & nbsp; & nbsp; 19-110 Please write the 10th number from left to right in line 20 () A. -1198B. -1200C. 1200D. 1202
• 12. After 1,2,3,4,5,6 are written in a row in any order, the three adjacent numbers can form four 3-digit numbers according to their order in the arrangement The maximum value of the sum of these three digits is
• 13. How many four digit numbers can be arranged by using the six numbers 1, 2, 3, 4, 5 and 6?
• 14. Numerical reasoning: 0.0.1.4. () what should be filled in brackets and why?
• 15. According to the number provided, infer what number should be filled in the brackets? 0.1.3.6.10.15.21
• 16. May I ask the rule of 1.2.4.7.11. (). (). What number should be filled in brackets?
• 17. What are the numbers in brackets 1,2,2,4,8, ()?
• 18. What number should brackets be
• 19. Number reasoning: - 3, - 2, - 1,6,25, (), the number in brackets should be? 58 、62、66、70
• 20. Number reasoning: 2,3,13,45, (), the numbers in brackets are Please provide the calculation process, tks~