Keywords: spring looking for the third grade of primary school
This article is suitable for: the third grade of primary school.
Composition source:
This essay is about the third grade of primary school. The title is Looking for Spring (math diary). Everyone is welcome to contribute.
Looking for Spring (math diary)
My name is A Xing. I'm a pure white cat. I live in Lily Valley.
Now, it is March day on the earth, but the Lily Valley is still covered with snow. In previous years, when spring came, friends of Lily Valley and swallows would fly and sing. Peach blossoms are also in bloom, and occasionally a petal slips into the tinkling stream. However, what about now?
"A Xing, Sister Chun won't forget our Lily Valley, will she?" My close friend Sugar Sugar asked me. "No-"I muttered some questions. "Why don't we ... go find Sister Chun?" "good!"
We came to the electronic door in front of the valley-you know, if you want to go out, you can only answer intelligent questions. Slowly, the electronic screen of the gate shows a sentence:
1. How many sides can you see at a time?
"three!" Sugar sugar blurted out. "The answer is correct." A mechanized voice said, "Next question."
2. What shape does the figure below look like from the top and front? Is the answer given correct?
"Er ..." I observed it for a while and said, "This figure is round from the top and rectangular from the front. The answer given is correct. " "Please." Another mechanized voice, the door opened.
I stood on tiptoe and looked around: other places were the same as Lily Valley-all white. "A Xing, what do you think that is?" There was a rush of sugar in my ear. Look down the sugar finger, ah, there is a green grass! "Go!"
It is really a piece of green grass! There is a cave at the end of the green grass. We were just about to set foot on the path next to the green grass when we heard an old voice saying, "If you want to go in, answer my question first!" " ""answer it! Who is afraid of who! " Sugar sugar said.
"Students rent a car for a spring outing. If there are 40 people in each car, 20 people can't get on. If there are 48 people in each car, 12 people in one car are not full. How many cars did the school rent? * * * How many students go for a spring outing? " It's that voice again, but with a provocative tone.
"I have never seen such a problem ... meow ..." Tang Tang hesitated. "I will do it!" I took a step forward and said, "Let me list the equations of this problem.
Solution: Let * * the number of car rentals be X.
40 people per vehicle × number of vehicles +20 people = total number of people.
48 people per vehicle × number of vehicles-12 people = total number of people.
40×x+20=48×x- 12
X=4 .a: The number of cars is four.
40×4+20= 180 (person)
A: The total number of people is 180. "
"Wow, A Xing, you are so smart!" Tang Tang looked at me with admiration.
"You are so smart! I asked many cats this question, but they didn't answer. You are the first! " The voice paused, "go and wake up your sister Chun! She was enchanted by a wizard and needed the help of a close friend's song. " "well! Sugar, let's go! "
"Spring elder sister, here we come! ——3、2、 1! "I sing with Tang Tang:
"Quietly watching the first seed germinate under the soil, the ice and snow on the top of the tree melt, and beautiful flowers of love bloom. The breath of spring floats lightly in the cold wind, announcing that the long wait is coming to an end, and the clouds in the sky gather into your smile, telling me that happiness is coming ..."
At this moment, the song overflows Shan Ye, and the spring scenery floats in the wilderness!
1000 words