What are bóng đá hôm nay trực tiếp 1st-semester question papers and answers for 8th-grade Mathematics? What are bóng đá hôm nay trực tiếp educational objectives of 8th-grade Mathematics in Vietnam?

What are bóng đá hôm nay trực tiếp 1st-semester question papers andanswers for 8th-grade Mathematics in Vietnam?

Students can refer to bóng đá hôm nay trực tiếp following1st-semester question papers andanswers for 8th-grade Mathematics in Vietnam:

Department of Education and Training ...

1st-semester question paper - Knowledge Connection

2024 - 2025Academic Year

Subject: 8th-grade Mathematics

Duration: minutes

(Question paperNo. 1)

SECTION I. MULTIPLE CHOICE (3.0 points)

Please write bóng đá hôm nay trực tiếp uppercase letter in front of bóng đá hôm nay trực tiếp only correct option for each of bóng đá hôm nay trực tiếp following questions in your paper.

Question 1.How many terms are in bóng đá hôm nay trực tiếp polynomial?

A. 3.

B. 4.

C. 5.

D. 6.

Question 2.bóng đá hôm nay trực tiếp quotient of divisionis

Question 3.bóng đá hôm nay trực tiếp value of bóng đá hôm nay trực tiếp expressionat x = 8 and y = 8 is

A. 16.

B. -1.

C. -64.

D. 64.

Question 4.bóng đá hôm nay trực tiếp result of expanding bóng đá hôm nay trực tiếp calculationis

Question 5.For bóng đá hôm nay trực tiếp expressionto be bóng đá hôm nay trực tiếp square of a difference, bóng đá hôm nay trực tiếp value of a is

A. 10.

B. -10.

C. 5.

D. -5.

Question 6.Consider bóng đá hôm nay trực tiếp following shapes:

Among bóng đá hôm nay trực tiếp following shapes, which are squares?

A. Shape 1.

B. Shape 2.

C. Shape 2.

D. Shape 4.

Question 7.Which of bóng đá hôm nay trực tiếp following statements is false?

A. A quadrilateral with opposite sides parallel is a parallelogram.

B. A quadrilateral with opposite sides equal is a parallelogram.

C. A quadrilateral with two opposite angles equal is a parallelogram.

D. A quadrilateral with two diagonals bisecting each other is a parallelogram.

Question 8.Given triangle ABC isosceles at A. Let D, E belong to sides AB, AC respectively so that DE // BC.

Choose bóng đá hôm nay trực tiếp most correct answer. What is bóng đá hôm nay trực tiếp quadrilateral BDEC?

A. Isosceles trapezium.

B. Right trapezium.

C. Triangle.

D. All A, B, C are incorrect.

Question 9.Given triangle ABC with BM as bóng đá hôm nay trực tiếp bisector ofthen

Question 10.Given bóng đá hôm nay trực tiếp diagram. bóng đá hôm nay trực tiếp value of x is:

A. 5.5.

B. 10.

C. 3.

D. 1.75.

Question 11.bóng đá hôm nay trực tiếp favorite foods of class 8A students recorded in bóng đá hôm nay trực tiếp following table:

bóng đá hôm nay trực tiếp quantitative data in bóng đá hôm nay trực tiếp table is

A. Favorite foods: Bread, Chicken feet, Grilled maize, Sausage.

B. Number of students: 8; 11; 7; 9.

C. Bread, Chicken feet, Grilled maize, Sausage, 8, 11, 7, 9.

D. All A, B, C are correct.

Question 12.bóng đá hôm nay trực tiếp composition of a type of steel is shown in bóng đá hôm nay trực tiếp chart below:

bóng đá hôm nay trực tiếp mass of iron in a 1 kg steel bar is

A. 953 g.

B. 26 g.

C. 21 g.

D. 95.3 g.

SECTION II. SCRIPT (7.0 points)

Exercise 1.(1.0 point) Calculate and simplify bóng đá hôm nay trực tiếp following expressions:

Exercise 2.(1.5 points) Factorize bóng đá hôm nay trực tiếp polynomial:

Exercise 3.(1.0 point) bóng đá hôm nay trực tiếp column chart shows bóng đá hôm nay trực tiếp sweet potato yield in Phu Tho over bóng đá hôm nay trực tiếp years 2015; 2018; 2019; 2020 (unit: thousand tons):

(Source: Statistical Yearbook 2021)

a) What type of chart is bóng đá hôm nay trực tiếp above chart? To obtain bóng đá hôm nay trực tiếp data presented in bóng đá hôm nay trực tiếp above chart, do we use direct or indirect collection methods?

b) Did bóng đá hôm nay trực tiếp sweet potato yield in Phu Tho in 2019 increase or decrease by how much percent compared to 2015 (round bóng đá hôm nay trực tiếp result to bóng đá hôm nay trực tiếp nearest tenth)? What can you comment on bóng đá hôm nay trực tiếp sweet potato yield in Phu Tho over bóng đá hôm nay trực tiếp years 2015; 2018; 2019; 2020?

Exercise 4.(1.0 point) With bóng đá hôm nay trực tiếp data recorded in bóng đá hôm nay trực tiếp following figure. Calculate bóng đá hôm nay trực tiếp distance CD from bóng đá hôm nay trực tiếp ship to bóng đá hôm nay trực tiếp observation station located at point C

Exercise 5.(2.0 points) Given an acute triangle ΔABC with AB < AC. Let N be bóng đá hôm nay trực tiếp midpoint of AC. Take point D on ray BN so that BN = ND.

a) Prove that N is bóng đá hôm nay trực tiếp midpoint of PQ.

b) What additional condition is needed for triangle ABC for quadrilateral ABCD to be a square?

ANSWERS

SECTION I. MULTIPLE CHOICE (3.0 points)

SECTION II. SCRIPT (7.0 points)

Exercise 3. (1.0 point):

a) bóng đá hôm nay trực tiếp given chart is a column chart.

To obtain bóng đá hôm nay trực tiếp data presented in bóng đá hôm nay trực tiếp above chart, we use indirect collection by accessing bóng đá hôm nay trực tiếp website of bóng đá hôm nay trực tiếp Statistical Yearbook 2021.

b) bóng đá hôm nay trực tiếp sweet potato yield in Phu Tho in 2019 is less than in 2015 (since 10.2 < 14.5).

Thus, bóng đá hôm nay trực tiếp sweet potato yield in Phu Tho in 2019 decreased compared to 2015.

bóng đá hôm nay trực tiếp percentage rate of sweet potato yield in Phu Tho in 2019 compared to 2015 is:

Therefore, in 2019, bóng đá hôm nay trực tiếp sweet potato yield in Phu Tho increased by approximately 100% - 70.3% = 29.7% compared to 2015.

Comment: Based on bóng đá hôm nay trực tiếp data shown on bóng đá hôm nay trực tiếp chart, bóng đá hôm nay trực tiếp sweet potato yield in Phu Tho has decreased over bóng đá hôm nay trực tiếp years 2015; 2018; 2019; 2020.

Exercise 4. (1.0 point):

Exercise 5. (2.0 points):

Exercise 6. (0.5 points):

Note: Information is for reference purposes only!

What are bóng đá hôm nay trực tiếp 1st-semester question papers and answers for 8th-grade Mathematics in Vietnam? (Image from bóng đá hôm nay trực tiếp Internet)

What are bóng đá hôm nay trực tiếp educational objectives of 8th-grade Mathematics in Vietnam?

Under Section 4 of bóng đá hôm nay trực tiếp General Education Program for Mathematics issued withCircular 32/2018/TT-BGDDT, bóng đá hôm nay trực tiếp educational objectives of Mathematics at bóng đá hôm nay trực tiếp lower secondary level are as follows:

- Contribute to bóng đá hôm nay trực tiếp formation and development of mathematical competence with bóng đá hôm nay trực tiếp following requirements:

+ State and answer questions when reasoning, solve problems, and perform reasonable arguments when solving problems, demonstrate mathematical propositions that are not too complex;

+ Use mathematical models (mathematical formulas, algebraic equations, diagrams,...) to describe situations appearing in some practical problems that are not too complex;

+ Use mathematical language combined with common language to express mathematical content as well as show evidence, methods, and results of reasoning;

+ Present ideas and methods of using tools, and means for studying mathematics to achieve a learning task or to express mathematical reasoning and proofs.

- Have basic mathematics knowledge and skills on:

+ Number and Algebra: Number system (from natural numbers to real numbers); calculations and use of calculation tools; algebraic language and symbols; transformation of algebraic expressions, equations, systems of equations, inequations; bóng đá hôm nay trực tiếp use of function language to describe (model) some processes and phenomena in practice.

+ Geometry and Measurement: bóng đá hôm nay trực tiếp content of Geometry and Measurement at this level includes Visual Geometry and Plane Geometry. Visual Geometry continues to provide language, symbols, and descriptions (at bóng đá hôm nay trực tiếp intuitive level) of objects of practice (plane figures, solids); establishe some common geometric models;

++ Calculate some geometric elements; develop spatial imagination; solve some simple real-world problems related to Geometry and Measurement.

++ Plane Geometry provides knowledge and skills (at bóng đá hôm nay trực tiếp level of logical reasoning) about geometric relations and some common plane figures (point, line, ray, segment, angle, two parallel lines, triangle, quadrilateral, circle).

+ Statistics and Probability: Collecting, classifying, representing, analyzing, and processing statistical data; analyzing statistical data through frequency, and relative frequency; recognizing some simple statistical laws in practice; using statistics to understand basic concepts about bóng đá hôm nay trực tiếp empirical probability of an event and bóng đá hôm nay trực tiếp probability of an event; recognizing bóng đá hôm nay trực tiếp meaning of probability in practice.

- Contribute to assisting students to have an initial understanding of careers related to mathematics; have career guidance based on their capabilities and interests, conditions, and circumstances; guidance on post-secondary school pathways (continuing education, vocational training, or entering labor life).

What are bóng đá hôm nay trực tiếp duties of 8th-grade students in Vietnam?

Under Article 34 of bóng đá hôm nay trực tiếp lower secondary school, upper secondary school and multi-level school charter issued withCircular 32/2020/TT-BGDDT, bóng đá hôm nay trực tiếp duties of 8th-grade students are as follows:

- Learn and train according to curricula and education plans of their schools.

- Respect their parents, officials, teachers and staff of their schools, and those older than them; maintain solidarity and mutual support in learning and training; conform to bóng đá hôm nay trực tiếp charter and rules of their schools; and abide by bóng đá hôm nay trực tiếp law.

- Take exercises and maintain personal hygiene.

- Participate in group activities of their schools and classes, Ho Chi Minh Young Pioneer Organization and Ho Chi Minh Communist Youth Union; help their families, join physical and social activities and environmental protection activities, and maintain traffic order and safety.

- Protect school and public property; contribute to fostering, preservation and enhancement of school traditions.