Eight natural numbers are arranged in a row. Starting from the third number, each number is equal to the sum of the two numbers before it. It is known that the third number is 18 and the eighth number is 76 As shown in the figure () () 18 () () 76

RELATED INFORMATIONS

• 1. Eight natural numbers, starting from the third number, each number is equal to the sum of the first two numbers. Given that the first number is 3 and the eighth number is 180, what is the second number?
• 2. Eight natural numbers are arranged in a row. Starting from the third number, each number is the sum of the two numbers in front of it. Given that the fifth number is 7, then the eighth number is 7______ ．
• 3. Let the inequality 2 ^ n > n ^ 2 + 1 hold for any natural number n ≥ K. The minimum K value is__________
• 4. Is 0 a natural number So far, I still don't know whether 0 is a natural number. Some people say yes, others say no. who can give an accurate answer, why, who can prove it. If not, you'd better have your opinion
• 5. What are natural numbers and zeros?
• 6. Is 4.0 a natural number set?
• 7. Is 1 a factor of any non-zero natural number correct? Give the reason
• 8. Arrange the natural numbers as follows: 1. The last number in line 30 is () 2. There are () numbers in the first 40 lines. 3. The first number in line 28 is () one 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
• 9. According to the rule in Figure 2-3, if the m-th number in line n is? (expressed by the algebraic formula of N, and N is greater than m), then the 2002 number in line 2001 should be one two hundred and thirty-four five thousand six hundred and seventy-eight ten trillion and one hundred and eleven billion two hundred and thirteen million one hundred and forty-one thousand five hundred and sixteen . Figure 2-3
• 10. Arrange the natural numbers according to the rules in Figure 1. Each natural number corresponds to a coordinate. For example, the coordinate corresponding to number 3 is (1,1) What is the coordinate of 2010? In which quadrant? Figure zhidao.baidu.com/question/389289072 .html
• 11. A natural number is divided by 3, 4 and 5, the remainder is 2, 3 and 4 respectively, and the sum of the three quotients is 138. What is the natural number?
• 12. With 0, 1, 2 three numbers can form a lot of natural numbers, which are arranged from small to large, respectively: 0, 1, 2, 10... Then 2012 is the number one
• 13. The following numbers were observed: 1.6.11.16.21 How much of it is equal to 2006?
• 14. Observe the following column numbers: 1, 6, 11, 16, 21 (1) Write the expression of its nth number (2) which number is equal to 2006?
• 15. The sum of three consecutive natural numbers is 45. What are the three natural numbers?
• 16. If the sum of three consecutive odd numbers is 45, then the three numbers are______ ．
• 17. How many ways can 70 be divided into the sum of 11 different natural numbers
• 18. Among the natural numbers from 1 to 100, the numbers that are multiples of 5 or 7 are______ One
• 19. What is the sum of all natural numbers within 100 that are not multiples of 3?
• 20. The sum of a natural number less than 80 and 3 is a multiple of 5, and the difference from 3 is a multiple of 6. The maximum value of this natural number is