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Math diary has 450 words in the fourth grade.
There is mathematics everywhere in life, which plays an important role in life. Mathematics is needed everywhere in life because it can solve many problems in life. Next, I'll bring you a 450-word grade four in math diary. I hope the students like it.

Math diary fourth grade 450 words a 20 1X years X months X days X weeks X sunny.

Once a year in the forest? Math contest? . Here we go. The bird said: Listen, any number in the world is the sum and multiplication of all numbers. What is the product? It's quiet down there.

? Equal to 0? . The chicken cried, and the red team scored ten points.

The bird said again:? 2+21+211= 7, let this formula hold? .

The clever fox said? 2+2+2+ 1=7, this formula holds? . The blue team scored ten points. The following thunderous applause.

The bird said, there are seven pockets, and the money in them is less than 20. What's the minimum? How much is it at most?

As soon as the words were finished, the puppy said, at least take 28 yuan, and at most 1 12 yuan? .

? Wow! What a genius! Blue team plus 20 points? .

? 1+2+3+4+5+6+7+8+9=35, just change the number to make the formula hold? .

Sons of liberty said? Just change +5 to -5, one plus one MINUS, isn't it 10? . Red team plus 10 points.

This is the last question, worth 30 points. Listen carefully. In the English competition, Class One is not the first, Class Three is not the last, Class Four is the third, and Class Two is in front of Class Three. Do you know the ranking order?

The kitten is whispering: I see, class two is the first, class three is the second, class four is the third and class one is the fourth. ? The blue team scored 30 points.

The bird said that the red team won the math contest, and the blue team won the red team 60-20. ?

Math diary four grades 450 words two 20 1X year x month x day x week x sunny.

Today, I watched my Intelligent Mathematics happily at home. I looked at it and saw an interesting math problem about math on a pair of Spring Festival couplets. The content inside is that the elders of the Yuling tribe lived in the late Han Dynasty, and the Queen of the Magic Kingdom led the courtiers to celebrate their birthdays. When she arrived, the witch Xiaoxing saw the elder's long white beard and couldn't help asking. How old are the elders?

It's naughty to chew the head of an animal elf. He had already heard about the mathematical ability of the subjects in magic kingdom. He decided to have a look today.

So, he wrote a question in the context of couplets:

Part I: Flowers reopen, plus 37 years.

Bottom line: ancient and rare, once more in spring and autumn.

At first, I didn't know where to start, because I didn't know what "flower armor" and "ancient rarity" meant. Later, my mother said: What does it mean? 60? What does it mean to be old and ancient? 70? Years old. Now, I finally have a clue. Online? Reopen? That is, the next two 60 s, three seven years? Is it 3? 7=2 1 year, and the upper part is 60? 2+3? 7= 14 1 year, bottom line:? Shuangqing? It's two 70s. Once in spring and autumn? Now it's 1 year, and the offline age is 70? 2+ 1= 14 1 year, so the elder's age is141+1= 282 years old.

Ah! Mathematics is so interesting.

Math diary four grades 450 words three 20 1X year x month x day x week x sunny.

Today, I learned the method of overall planning in math class, and I know more about the value of time. It is the most reasonable method to arrange time by overall planning, which will greatly reduce unnecessary time consumption. In life, there are many things that can be taken as a whole.

For example, I cook a fruit dinner for my parents. Prepare for 5 minutes, soak the fruit for 5 minutes, cut the fruit for 7 minutes, decorate for 2 minutes, and cool the juice 10 minute. Arrange the time with the overall planning method, get ready when soaking fruit, * * * 5 minutes, and then take a bottle of juice to remove ice. In this process, you can also cut the fruit and set the fruit. It only took 9 minutes, and there is still 1 minute to rest. It is indicated by the flow chart: soaking the fruit (preparing at the same time) and freezing the juice (cutting and discharging the fruit at the same time) * * * takes 15 minutes. What a time saver.

Another example: get up in the morning for 5 minutes, make the bed for 5 minutes, wash for 5 minutes, warm milk 10 minutes. Then you can warm the milk after getting up. In this process, you can wash your face and make your bed, so you can drink milk in 10 minutes, which is very time-saving.

Time is money. Time is precious, once lost, it will never come back. If we do everything in a coordinated way, we will use our time very tightly and won't let it go to waste!

After reading 450 words of math diary's fourth grade, I will still read:

1. Four 400-word compositions by math diary, Grade Four, Primary School.

2. Three selected compositions of 400 words by math diary in the fourth grade of primary school.

3. Four selected compositions of 300 words by math diary in the fourth grade of primary school.