Mathematics, Competency Training, 5th Grade?

Question 5: 2 – False, because 9 out of 9 is not a true score.

3 - False, because there are wireless, 1/2 = 2/4 = 3/6 = ......4 - Correct, the smallest prime number (prime number) is 2, and only if the denominator is 1 can it be guaranteed to be a true fraction.

Question 6: Read 100 pages in 10 days, and read every day:

100 divided by 10 = 10 (pages).

After reading it in 10 days, I watched the total number of:

10 divided by 100 = 1/10

I watched 1/10 every day, and I watched it in 7 days:

1/10) 7 = (7/10) Brackets are used to distinguish between them.

Question 7: First place: Zhang Xiang. Grade: m.

Second place: Wang Dong. Grade: m.

Third place: Li Gang. Grade: m.

Question 7 - 1st place Zhang Xiang: m 2nd place Wang Dong: m 3rd place Li Gang: m 4th place Xia Wen: m.

I'm in the sixth grade.,I'm a little bit of a little bit bad at these questions.,Senior sister is so ashamed.,Shame.。。。

Read 10 pages a day, read 1 10 a day, read 7 10 in 7 days,.

1st place: Dongxiang, score: m. 2nd place; Wang Dong, Grades; Rice. 3rd place; Li Gang, Grades; Rice.

The four lights of A, B, C, and D are all on, from A to D, and then from D to A, in groups of 8. So use 2007 8 = 500 7, and then Jun A, B, C, and D are closed, and then there are three left, and the ones that are open in turn are Ding Bing B.

There are four in total, all of which are turned off and turned on, so 8 are a group.

I can press 250 groups in total, and the remaining 7 times.

Press it 7 times again just to turn it off, and then turn on Ding Bing B, so A is off.

Because from A to D, and then from D to A, it is a total of 8 times. Pressed 2007 times, so there are 2007 8=250 rounds 7 times more. So on the 2007th time, press B. So A is closed.

This is 8 times per reincarnation, so according to this calculation, 2007 8. This result is equal to 250 more than 7, so who do you want from beginning to end? Of course it's B.

The contents of the fifth grade of the primary school mathematics textbook: decimal multiplication, decimal division, observing objects, simple equations, measuring a quantity--- finding rules, area of polygons, statistics and possibilities, paving a paving, mathematics wide angle, and total review eight units. Elementary School Mathematics 5th Grade Volume II Contents:

transformation of graphs; factors and multiples; cuboids and cubes; the meaning and nature of fractions; addition and subtraction of fractions; Statistics; Mathematics wide angle and comprehensive application, etc.

5th Grade Math Learning Methods.

1. Study plan.

Throughout the primary school stage, several courses are offered in each semester, the content of learning is different every week and day, and there are extracurricular exercises in each major subject. It is necessary to understand the importance of making a study plan, clarify the content of the study plan, and master the method of making a study plan.

There are two types of study plans: long-term and short-term. The long-term plan is to take one semester as appropriate, and make arrangements for the study of various subjects in general. The short-term plan should be one week, and make detailed and specific arrangements for the learning content, learning purpose, safeguard measures and work and rest time for each day of the week.

The study plan should be specific, clear and practical, while at the same time leaving enough room for flexibility and adaptability of the plan. In the process of implementation, it is necessary to be unswerving, but also to make appropriate adjustments according to reality, so as to make the study plan more realistic and more effective to improve the learning effect.

2. Preview method.

Preview is also called advanced learning, which refers to the process of learning and understanding the content to be learned in advance before the teacher starts the class. Preview is both an effective learning method and a good study habit. The method of preview is to read the content to be taught the next day, think carefully, link the new knowledge with the knowledge learned in the past, and see what you understand and what you don't understand, so as to clarify the focus, difficulties and doubts of the lecture, overcome the passivity and blindness in the classroom learning process, and improve the initiative and consciousness, so as to improve the learning effect.

3. How to listen to the class.

The classroom is the central part of school education and the main way for students to acquire scientific and cultural knowledge. If primary school students can't listen to lectures, can't understand and can't learn, it will increase the difficulty and pressure of reviewing after class, causing a bad cycle. At the same time, due to long-term accumulation, it may lead to school boredom, which is not conducive to improving learning effect and mental health.

To this end, in the classroom, pay attention to the following.

1) Listen carefully. Listen attentively and fully understand the content of the teacher's lecture and the meaning of its expression, such as the speed of the rhythm and the level of the voice.

2) Look at it. It is necessary to pay full attention to the content of the teacher's board book, and especially carefully observe the parts marked by the teacher with colored chalk and the parts highlighted by the electronic teaching aids, and carefully comprehend and memorize them.

3) Use your brain more. To think positively, to listen, watch, and think, to keep pace with the process of the teacher's lectures, to ask a few more whys, to connect the old and new knowledge to think, so that it is integrated, draw inferences from one another.

4) Take the initiative to practice. In class, you should speak boldly and study diligently, so as to deepen your understanding and improve the effect of listening to lectures.

5) Take notes. The main points and difficult points in the teacher's lecture should be concisely written down in the notes for review after class.

6) Good induction. Teachers should grasp the outline of the content taught in class, summarize the main points, and strive to understand it in class.

Set the fourth grade donation x yuan, x+1 6x=1400

x=1200

A: The fourth grade donated 1,200 yuan.

There are two ways to do this:

First, the formula method.

1400 (1+1 6)=1200 (yuan).

2. Equation method:

Solution: Set the fourth grade donation x yuan, x+1 6x=1400

x=1200

A: The fourth grade donated 1,200 yuan.

Solution: Let the fourth grade be x-yuan.

1400-x)/x=1/6

x=1200

A: The fourth grade donated 1,200 yuan.

Using the equation solution, set one of them to the unit "1".

(1)80kg=( )t。 (2)2h15min=( )h (3)708dm2=( )m2。(4) The result of the comparison and the result of the ( is relatively large.

5) The commercial cyclic decimal representation of 200 11 is ( ) Rounding two decimal places is approximately ( ).

1) The students in the Hand in Hand study group jointly purchased some notebooks for the same amount of money. If the notebooks were divided equally among the girls, each girl would receive 10 copies, and if the notebooks were divided equally among the boys, each boy would receive 15 copies.

Now these notebooks are divided equally among the students in the group, I would like to ask: How many copies can each person get?

2) Xiaolu rides from A to B, traveling 15km per hour. An hour after Xiao Lu's departure, Xiao Zheng set off from Jia Di by car, and caught up with Xiao Lu after an hour, how many kilometers did Xiao Zheng travel per hour by car?

3) A and B have 720 bags of rice and 280 bags of rice respectively, and now the same amount of rice is transported from these two warehouses, and the remaining rice in warehouse A is exactly 5 times the amount of rice left in warehouse B, so how many bags of rice are transported from each of the two warehouses?

Suppose that if the elder brother's age is x next year, then the elder brother's age this year is x-1, and the father's age next year is 2x, then the father's age this year is 2x-1

x-1）+（2x-1）=70

3x-2=70

3x=72x=24

So, my brother is x-1 = 23 years old this year.

Hope ( ),thanks (

Class 5 (2) was ready to go on a picnic and divided 42 bottles of mineral water and 30 bottles of Coke equally among the groups.

The greatest common divisor of 42 and 30 is 6

Up to 6 groups can be divided, each group can be divided into 7 bottles of mineral water and 5 bottles of Coke.

I'm a teacher. It's mine.

This number is multiplied by x + subtracted by itself =

Self Self +0=.

According to the clever mantra of a number of x11, "pull on both sides, add in the middle".

121 is 11 11. Pull on both sides, placing two 1s, one in the hundred place and the other in the single place. The middle is added, and the middle ten digits are added by two 1s = 2.

And there are 2 decimal places, so this number is not 11, but.

3. According to the law, it should be (

There are 5+5=10 zeros in the middle.

Let the decimal be a, which can be obtained from the title: axa + (a-a) = so a 2 = 1, 21 so a = that is, the decimal is.

Isn't your own difference 0? That sum is equal to oneself multiplication. That's it.

1.The sum of the resulting product and the difference is, since the difference is 0, then this decimal and its own product is, therefore, so this decimal is so the answer is:

2.A: Her total score is points.

3.10 zeros

You can take a picture so we can answer it more clearly.