I was told all the diaries of the fifth grade of elementary school!!!!!!!! Please

Just write down what you want to say.,There's no other requirement.,In addition, you can refer to the texts you've learned.,The articles you've read.,Good description.,Just use a little bit appropriate.。

Summary. Kiss me to your question, the result is equal to 4. First, convert 3 and 1 12 into fractional form, and get 37 12.

Then reduce the denominator of all numbers to a common multiple of 12 to get: 37 12 + 21 12 - 9 12 - 1 12 Combine the fractions to get: 48 12 Simplify the fraction and get:

5th grade !!

What problems did you encounter in the fifth grade?

Kiss me to your question, the result is equal to 4. Hail disturbance first converts 3 and 1 12 into fractional form, giving 37 12. Then reduce the denominator of all numbers to a common multiple of 12 to get :

37 12 + 21 12 - 9 12 - 1 12 Combine the fractions to get: 48 12 Simplification fractions, which is slowed down to: 4 Therefore, 3 and 1 12+ result is 4.

I hope I can help you<>

Can you write out the complete way to solve the problem? It's best to write it out, take a picture and send it to me to read.

It's the same as writing on paper.

Such? Through the branch kiss.

Will 3 and 12 in 12 count.

It won't <>

3 and 1 12 are like this, 3 2 plus 1 as the numerator, and the denominator is still 12.

Yes, that's it.

You can also divide it into points and then do a unified calculation, or you can divide the fractions to calculate it.

Class 6 (7) of Balu Experimental Primary School Xu Ruixiang.

This afternoon, I saw such a question in the "Elementary School Students' Two-color Lesson Pass".

The radius of the bottom surface of a cone is 8 decimeters, and the ratio of the length of the height to the radius of the bottom surface is 3:2, what is the volume of this cone in cubic decimeters?

Analysis: This is a prorated ......”

I didn't read much about the analysis, but I thought about it, huh? I haven't learned how to calculate the area of a cone. So how do I solve this problem?

I sighed, ready to continue reading the analysis, and then I thought again, will I be in the sixth grade soon after this summer? If you don't even know how to do the questions in this class. What kind of math Olympiad class am I?

Isn't it just a misname? Yes, I'm going to have to figure it out on my own.

Normally, I must have built a model in my head in front of this kind of problem, but I am extremely cautious about this problem, for fear of a mistake. I drew a perspective effect of a cone on paper. Take a closer look, huh?

If this figure is a flat figure, isn't it the same as a triangle, then isn't the cubic area of this cone 1/2 of the area of a cylinder with the same bottom and height as it? I was overjoyed. It turns out that the area of the cone is also easy to find.

As long as you know the height of the cone, and the bottom area, can you find it? Going back to this question, it tells you the radius of the bottom in its condition, which is equivalent to telling the area of the bottom, and it says that the ratio of height to base radius is 3:2, that is, the length of the base radius is 2/3 of the high.

Isn't that high a radius 3 2=high. In this way, the height is 12 decimeters, the base area is the cubic decimeter, and the cone area is the cubic decimeter.

Whew, I've finally been freed up. "I took a long breath, and through this problem, I also realized that there are many things in mathematics that are connected, just like the area of a cone and the area of a triangle. In fact, you don't need to know all the calculation formulas, as long as you can understand them, you can also solve the problem.

1 Staggered equals.

2 pairs. 3 logarithmic blocks.

4 pairs of potato mustaches.

5 Wrong Also drink high and have a fiber mold off.

6 pairs. 7 False.

1 is not true, 2 to 3, 4 to 5, 6 to 7, is not true.

On Sunday morning, I woke up early and went outside to breathe in the fresh morning air and start the day.

As I walked down the street, I looked to the east and saw rays of light shining through the thin clouds, spilling onto the earth, on people's faces, and gilding everyone's hair, as if the morning glow was going to give everyone a laurel crown. At the same time, I felt the freshness of the morning, there was no noise in my ears, no beeping of car horns, only the morning breeze whispering in my ears, blowing my somewhat disconnected hair.

Morning joggers enjoy the natural beauty of nature's bounty as they run leisurely. Seeing such a scene, I also sincerely yearned for it, and I couldn't help but join the team for the morning jog. Running and running, a "beautiful landscape" appeared in front of me, in a Yunliang Square on the side of the road, there were dozens of old aunts in red clothes, holding flower fans, smiling, waving their hands and twisting their waists, dancing in the morning breeze, looking very happy.

The crowd that stopped **, some of them also used "force" for it, and it seems that they also want to enter its "realm".

In the morning, how many people want to go to the time, fresh air, beautiful scenery, leisurely mood, I am deeply moved by it, and I am reminded of a sentence taught by the teacher: the plan of the day lies in the morning. I think that every Sunday morning in the future, I will get up early, go out for a walk, integrate into the environment, integrate into society, and move from morning to a better tomorrow.

Upper bottom and lower bottom 2 375 dm.

Bottom 20 (1 dm.)

Top bottom 8 dm.

Lonely smoke, hello :

The sum of the top bottom and the bottom bottom is:

375 2 dm)

The bottom is: 20 (decimeters).

The top bottom is: 8 dm)

Landlord, you must have misheard. The answer is definitely 15, and I've checked it many times.

8 times 120 = 960

960 divided by 64=15 hours. Hope.

I'm a passerby.