According to the law, fill in the appropriate number 54 / 5, 18 / 5, 6 / 5, 2 / 5 () in the brackets. Why

RELATED INFORMATIONS

• 1. 2, 6, 18, 54, 162, -- -- what do you want to fill in the next two numbers?
• 2. Fill in the brackets with 3, 6, 18 and 54, and each number can only be used once, () △ () × () = ()
• 3. How does Lucas sequence evolve from Fibonacci sequence and its practical application in daily life? Thank you
• 4. There is an arithmetic sequence with even terms. The sum of odd and even terms is 24 and 30 respectively. If the last term exceeds 10.5 of the first term, try to find this sequence
• 5. There is a series of numbers, the first number is 8, the rule of each number is: if the previous number is odd, subtract 1 and multiply 2, if it is even, divide 2 and add 2 What is the 100th number?
• 6. In the even number series of 2, 4, 6.396 and 398, how many digits are there in total
• 7. There are 100 natural numbers whose sum is even. Among these 100 natural numbers, the odd number is more than the even number. Q: how many even numbers are there at most?
• 8. The first six items are 3,6,11,18,27,38, and the tenth item is
• 9. Sequence: 3,6,11,18,27,38. What is the nth term
• 10. Find the sum of the first seven terms of sequence 2,6,18,54
• 11. There is a column of numbers: 2, 5, 8, 11, 14, * * *. The seventh number is 20. What should the number 2008 be and what should the number n be It's a seventh grade math problem
• 12. Q: a column number - 2, - 5, - 8, - 11, - 14 What is the 100th number?
• 13. There is a column of numbers; 25 8 11 14 in order, what is the 1995 number?
• 14. Observe the number of the following column in order, according to its arrangement. Please write the following three numbers and the nth number (1) 1,3,5,7,9, (), (), (). The nth number is () (2) 3,5,7,9,11, (), (), (). The nth number is () (3) - 3, - 1,1,3,5, (), (), (), the nth number is () (4) 5,3,1, - 1, - 3, (), (), (). The nth number is ()
• 15. Look at the numbers in the following column. Please write down the following three numbers. Can you name the 10th number, the 101st number and the 2004 number? The first question: - 1, - 2, + 3, - 4, - 5, + 6, - 7, - 8, (), (), (). The second question: - 1, half, - 3, quarter, - 5, one sixth, - 7, one eighth
• 16. Look at the following column of numbers in turn. Please write down the following three numbers. Can you point out what the number 2008 is? Look at the following column of numbers in turn. Please write down the following three numbers. Can you point out what the number 2008 is? 3,2,1,0, - 1, - 2, - 3,... 2008 1, - 1 / 2,2 / 3, - 3 / 4,4 / 5, - 5 / 6,... 2008 1, - 3,9, - 27,81, - 243... Then the nth number is
• 17. Look at the following column of numbers: 1 / 2, - 1 / 6,1 / 12, - 1 / 20. Please find out the rule of arrangement and fill in the blanks according to the rule. The ninth number is the first
• 18. Two fifths of a number is 25. What's half of the number
• 19. The sum of a and B is 800. Two fifths of B is 50 more than half of A. what is a and B
• 20. Two fifths of a number is three less than one half of it. What's the number?