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How much is (- 1) divided by (- 1, two-thirds) multiplied by one-third?
zero point five
What's the result of 1 divided by three-thirds of the negative?
Minus two thirds
How many days were there in 1980? 365 or 366? How to calculate?
What about 2000, 2004 and 2005?
According to that, is 2005 365 days?
366, the year number can be divided by 4 and can't be divided by 100, or the year number can be divided by 400 is leap year, the leap year has 366 days, the other is normal year, there are 365 days. In 2000 and 2004, there are 366 days, and in 2005, there are 365 days
Why is there a difference between 365 days and 366 days in a year?
Every four years there will be a leap year - 366 days. But why every four years there will be one more day? Why is it more in February?
It takes 365 days, 5 hours, 48 minutes and 46 seconds for the earth to circle the sun
Because 365 days 5 hours 48 minutes 46 seconds = 365 days 6 hours
For convenience, the average year is 365 days
So in order to make up for the time difference, there are 366 days of leap year and 29 days of February every four years
In Gregorian calendar (Gregorian calendar), the year with leap day is called leap year. The general year is 365 days, and the leap year is 366 days. Because the earth's cycle around the sun is 365 days, 5 hours, 48 minutes and 46 seconds (365.24219 days), that is, a regression year, the Gregorian calendar sets a year as 365 days. The remaining time is about four years, one day in total, added to February, so the normal year is 365 days, February is 28 days, leap year is 366 days, February is 29 days. Therefore, there are 97 leap years in every 400 years. The leap year increases by one day at the end of February, and the leap year is 366 days. The calculation method of leap year: the number of years in the ad era can be divided by four, that is, leap year; the number of years divided by 100 but not by 400 is equal year; the number of years divided by 100 but not by 400 is leap year. For example, 2000 is leap year, but 1900 is not
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- 9. In the number of winners, one out of every five is in the fourth grade, and one out of every four is in the fifth grade. [1] what percentage of the total number of winners is in the sixth grade? [2] if there are 25 winners in the fifth grade, how many winners are in the sixth grade?
- 10. There are 44 students in the class, 20% more boys than girls. How many boys and girls are there?
- 11. What is 460 divided by 2
- 12. How did ancient people know 365 days a year?
- 13. A year 365 days, 24 hours a day, 60 minutes an hour, 60 seconds a minute, how many seconds?
- 14. How many years is 40 million hours
- 15. 365 days a year, how many years, months, weeks, days, hours, minutes and seconds?
- 16. A flat angle has no vertex, a perimeter is a ray, and it has only one edge______ (judge right or wrong)
- 17. What angle is four ninths of the circumference and how many degrees is it
- 18. If α and β are complementary angles, α and γ are complementary angles, and the sum of β and γ is equal to 1 / 3 of the circumference Then the degree of ∠ α ∠ β ∠ γ is in the order of?
- 19. The circumference is a ray______ ．
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