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Pit dad's third grade math homework. When is the National Day in 2009? Don't talk about the Chuller formula. Is there any simple calculation method?
Needless to say, China is 65438+ 10/month 1. The key is to calculate the day of the week.

Here we use leap year and non-leap year things. There are 366 days in leap years and 365 days in non-leap years. Another thing is to know that today is Friday. All right, let's get started. From June 65438+1 October1to August 8, 2065, there were 92+365+365+366+365+220-1=14. Description, 92 days are from June 65438+1 October1February 3, 2009, and the rest are 20 10, 20 16, 20 12, 2009. 220 days is the days from October 20 14 1 10 to August 8, 20 1 4, in which 1 is subtracted for double counting; The remaining 1 day means that this week is the same as yesterday, and there is another day today.

I hope my answer can help you. If you don't understand anything, you can ask and hope to adopt it.