What do you fill in the brackets? Why

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• 1. Numerical reasoning - 1,0,1,8, (), 64 what should be filled in brackets
• 2. Some three digit numbers are divided by 3.5.7 to make up 2. Arrange these three digit numbers from small to large, and the fourth number is
• 3. Use 2, 1, 6 and 8 to form different three digit numbers, and arrange them in the order from small to large
• 4. The numbers 1, - 1 / 2,1 / 3, - 1 / 4,1 / 5, - 1 / 6 are arranged as follows according to certain rules, First line 1 Second line - 1 / 2 1 / 3 The third line - 1 / 4 1 / 5 - 1 / 6 The fourth line 1 / 7 - 1 / 8 1 / 9 - 1 / 10 The fifth line 1 / 11 - 1 / 12 1 / 12 - 1 / 14 1 / 15 ………… ……………… ………… So, can you write 10 numbers from left to right in line 20?
• 5. Take 6 / 11, 10 / 17, 15 / 26, 5 / 8, 12 / 19 from small to large, which score is at the top
• 6. It is necessary to arrange 2 / 3, 5 / 6, 5 / 13 and 11 / 18 in descending order
• 7. Number game: the first line 28 7 7 6, the second line 9 9 8 8, the third line () 5 13 16, 5 B, 17 C, 19 D, 47 which one Let's talk about the reasoning process
• 8. Observe the following table 1 2 3 4 The first line 2 3 4 5 The second line 3 4 5 6 The third line 4 5 6 7 The fourth line The first, second, third and fourth columns guess that the number at the intersection of the sixth row and the sixth column should be______ , the number at the intersection of row N and column n should be______ (expressed by a formula containing a positive integer n)
• 9. A math problem. 1.2.7.14.23.34. How to find the law
• 10. Look at the following table ~ and answer what numbers x ~ and y are 0 1 1 1 0 0 1 2 2 5 5 x 2 0 0 5 y 14 16 16
• 11. Number reasoning: 227238251259,)
• 12. Number reasoning: 1, 2, 3, 7, 16, (), the number in brackets should be? A.58 B.62 C.65 D.68
• 13. The first number in the nth row is () and the nth row has () numbers one 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 . one 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 ......................
• 14. Fill in the following numbers in the corresponding set -(+ 7) - three and half 6.5 + 0.40.2 - (- 3) five thirds 0 + (- 5) - twenty two seventh Set of positive numbers: Score collection: Set of integers: Set of negative numbers: Set of nonnegative numbers: Set of rational numbers:
• 15. Arrange the natural numbers from small to large, try to find: 1, the sum of the first 10 numbers 2, the sum of the first 100 numbers 3, the sum of the first n numbers
• 16. Find the multiple table from 88 to 1000 For example: Multiple table of 37 37×2＝74 37×3＝111 37×4＝148 37×5＝185 37×6＝222 37×7＝259 37×8＝296 37×9＝333 37×10＝370 . To 88 times 1000
• 17. How to judge the number of geometry or small cube composed of geometry from three views? Don't use any layer, column or row. I can't understand it. It's better to have a diagram. I don't know anything about three views! I mean from the main view, left view, top view, or from the main view, top view, left view and it gives you two views. How do you judge the other view and know the maximum and minimum number of cubes? (well, it seems a little cumbersome ~)
• 18. Use several same cubes to build a geometry. The three views of the geometry are shown in the figure. Then the minimum number of cubes needed to build the geometry is () A. 8B. 7C. 6D. 5
• 19. As shown in the figure, it is a shape diagram of a three-dimensional figure seen from three different directions. The three-dimensional figure is composed of some identical small cubes. The number of these identical small cubes is () A. 4B. 5C. 6D. 7
• 20. Arrange the positive odd numbers as follows (3,5,7); (9,11,13,15,17), and ask which group of numbers is 2005