Hello. What have you seen and heard about the Spring Festival in math diary, which is in urgent need ~ should include%-urgency,-urgency,-quickness, (Grade 6) quickness! Reward reward points

Today, I finished my math homework and watched "Enlightenment of Mathematics" in the Mathematical Grand View Garden. The king of ancient Greece asked Archimedes, a famous mathematician, for a shortcut to learning mathematics. Archimedes wrote down two numbers on the paper:11,1. "111"means "unique" and "100 1" means "consistent". It means: there is no shortcut to learning, so you can only persevere.

I thought it was very interesting, so my mother and I found a few more figures like this:

"23456789" means "lack of clothes and food (10)"

"7086" means "falling apart"

"2468 10" means "unique"

"999" means "a thousand evils get one"

Math is really interesting. I like it more and more

(2)

It will be sunny on Thursday, July 23rd.

Today, I read the story of mathematician Gauss when he was a child. After reading it, I admire him very much.

This story is about Gauss' second grade. Just after learning addition, the teacher asked a question:1+2+3+4+5+6+7+8+9+10 =? Gauss quickly worked out the answer. The teacher was shocked and asked how Gauss worked it out. Gauss replied: "I just found that the sum of 1 and 10 is1,the sum of 2 and 9 is also 1 1, and the sum of 3 and 8 is also 1 1. Also11+1+11+65438+65438+1= 55. That's how I calculated it. "Gauss grew up to be a great mathematician.

When Gauss was young, he could turn difficult problems into simple ones. Only by observing and seeking rules can he turn a difficult problem into a simple one. His spirit is worth learning.

(3)

It will be sunny on Tuesday, July 28th.

Today, I read the story of mathematician Hua, from which I learned that he eventually became a generation of mathematicians with his strong perseverance and lofty pursuit.

When he was a teenager, Hua especially loved mathematics, and his math performance was not outstanding. 19 years old, one of his excellent articles shocked the famous mathematician Xiong Qinglai at that time. From then on, under the guidance of Mr. Xiong Qinglai, he embarked on the road of studying mathematics. Grandpa Hua carefully cultivated the younger generation, so that young mathematicians can thrive and stand out. After work, he doesn't forget to write some popular science books for young friends.

Grandpa Hua warned us that it is enough to be good at "retreating" complex problems, and it is important to retreat to the most primitive place. This is a trick to learn mathematics well. I will learn to use this trick when I study mathematics in the future.

(4)

Friday, August 7th will be sunny.

Today, when my mother gave me a batch of homework, I found a wrong question:

30-7+4

=30- 1 1

= 19

I made an X and changed it to: 30-(7+4).

=30- 1 1

= 19

Mom said, "You did it wrong." My mother told me: in the mixed operation of addition and subtraction without brackets, we should calculate in order, which comes first. Of course, you can also calculate the latter first, but you must put parentheses, and you must pay attention to it: if the first step is addition, then the operation symbols in parentheses will remain unchanged; If the first operation is subtraction, it will change, and the plus sign will change to the minus sign, and the minus sign will change to the plus sign.

Ah, this time I not only corrected the wrong problem, but also learned another way to solve it. Mathematics is really wonderful!