Fill in 5,5,10,30120, (), (), 25200 according to the rule
Fill in 600 and 3600 because 5 * 1 = 5 5 * 2 = 10 10 * 3 = 30 30 * 4 = 120 * 5 = 600 600 * 6 = 3600 3600 * 7 = 25200
Fill in the figures according to the regulations
(1)2,3,5,8,12,();
(2)2,3,5,8,13,();
The difference between two adjacent numbers is 1.2.3.4
From the third, each number is equal to the sum of the first two numbers
Answer: 17 and 21
Rules for finding negative numbers in mathematical problems
-1.2, - 3.4, - 5, [], [], []. What is the 81st number and what is the 2005 number
-81
-2005
2.5, 1.25, 0.625______ ,0.15625.
According to the law: 2.5, 1.25, 0.625, 0.3125, 0.15625