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!

RELATED INFORMATIONS

• 1. 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
• 2. 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,
• 3. Find the law: 389114127912371623, 32______ ．
• 4. Two questions about filling in numbers regularly -3,-2,5,（）,61,122 6,7,19,33,71,（）
• 5. Help me to do a question, find the rules and fill in the numbers 2 13 5 6 4 11 5 7 7 4 10 7 11 1 12 I've been working all morning, but I can't do it
• 6. Find the rule to fill in the number and solve the application problem~ 30 25 20 40 34 28 50 26 Find the rules and fill in the numbers Average problem: 198 natural numbers, 1,2,3 , 198 are divided into three groups averagely, and the average numbers of these three groups are equal. What is the sum of these three average numbers?
• 7. 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 ()
• 8. 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
• 9. 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=?
• 10. Find the law, the faster! Give more. 1,1,2,3,5 {} 13,21,34 {} 89
• 11. 8,5.4,2.7, () 1.12,2.24,4.48, () 10,4,1.6, () how to fill in?
• 12. Find the rule 2,2,4,12,48, ()
• 13. Find the rule: 2, - 4.6, - 8.10, - 12.14, - 16, (), ()
• 14. 4. What are the laws of 3, 2, 6, 6, 3, 8, 12, 5, 10, (), 7
• 15. 3.5.6.10.9.15 () ()
• 16. 2. 10, 4, 8, 8, 6, 16, 4, (), ()
• 17. The following set of numbers in regular order: 1, 2, 4, 8, 16. What should the number 2014 be?
• 18. The following set of numbers are arranged in regular order: 1, 2, 4, 8, 16. The 2014 number is ()
• 19. 1,-3,5,-7,9,11,-13…… What is the 100th number in this column?
• 20. A column number 1, negative 3,5, negative 7,9, negative 11,13, then what is the 100th number in the column number?