Chapter one: Grade two mathematics.

This afternoon, my mother and I played blackjack with playing cards, that is, we showed four playing cards. Whoever works out the score first will win, and we have a good time. There are many algorithms, and some have only one algorithm. For example:? 3、7、8、9,? Its algorithm is: 3? (9-8+7)。 Also: 6,7, 1 9, and its algorithm is: (9-6)? (7+ 1)。 There are some things that we can't figure out at 24: 1 1, 9,13,7; 8, 9, 10, 1 1, we racked our brains and couldn't figure out a way. Maybe this is the secret of mathematics!

This game is full of fun and mystery!

Chapter 2: Mathematics

This summer vacation, I decided to watch all the first and second episodes of Piggy Snoring.

This book has two volumes. The first volume has four major articles, each with five short stories. The first volume has 170 pages.

The second volume consists of three chapters, each chapter has four short stories *** 12 and one * * * 142 pages.

This book tells some very interesting stories. Although the story is short, the truth is profound. I especially like reading this book. I watch it almost every day. I read a few pages every day. Very good. But because there are so many stories, it took me more than a month to finish reading them.

Chapter three: the dispute of numbers

It's broken! Digital baby quarreled again!

1 Miss Jie proudly said:? You all have to call me boss. Didn't I earn 100? My brother frowned and said, there is only one 1, and I still have two zeros! ? Brother joked:? And big duck eggs! People praised me as a beautiful white swan. ? In this way, they quarrel every day.

Today, Uncle 9 couldn't help saying: 1 Sister, Brother 0 and Brother 2, you all have your own skills, so unite and help each other! ? 1 little sister, 0 younger brother and 2 older brothers all blushed, apologized to each other and became best friends.

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