#Finalpreparationfor7thgrademathematics

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Final Preparation for the Annual Exam: Class 7 Math part 4

Final Preparation for the Annual Exam: Class 7 Mathematics

  Final preparation for 7th grade mathematics, preparation for the mathematics annual exam of grade 7, important question preparation for 7th grade mathematics, top preparation for the mathematics annual exam of grade 7, final preparation for 7th grade mathematics, revision guide for 7th grade mathematics exam, final preparation guide for the 7th grade mathematics annual exam, final preparation for important topics of the 7th grade mathematics exam, final revision preparation for 7th grade students for the mathematics annual exam, effective strategies for final preparation for 7th grade mathematics exam, best preparation tips for the 7th grade mathematics annual exam, final preparation for 7th grade mathematics: important tips to know before the exam. Mathematics Time: 3 hours Class: 7th Grade Full Marks: 100 Section A: Objective (25 marks) Multiple Choice Questions: (Write the correct answer in the answer sheet) 1 × 15 = 15 1. What is the method of solving a problem step by step called? (a) Flowchart (b) Routine (c) Algorithm (d) Processing 2. If the number of cards is 5, how many bits are there? (a) 2 (b) 4 (c) 8 (d) 5 Observe the figure below and answer questions 3 and 4:

                                                                   Circle 3. What is AB called? (a) Radius (b) Chord (c) Diameter (d) Arc 4. Observe the following information: i. AB is the longest chord of the circle. ii. CD is a chord but not the diameter. iii. The length of AB is twice the length of OA. Which of the following is correct? (a) i and ii (b) ii and iii (c) i and iii (d) i, ii, and iii 5. What is the least common multiple of the expressions xyz and xyp? (a) xy (b) p (c) xyp (d) xyzp 6. What is the LCM of and ? (a) (b) (c) (d) 7. If one side of a cube is 3 cm, what is the total surface area of the cube? (a) 18 square cm (b) 27 square cm (c) 36 square cm (d) 54 square cm 8. If many identical plates are arranged one after another on a circular plate, what shape does it form? (a) Spherical (b) Cubic (c) Conical (d) Cylindrical 9. If the height of a cylinder is doubled, how will its volume change? (a) Volume will become times. (b) Volume will double. (c) Volume will become four times. (d) Volume will remain unchanged. 10. What are the roots of the equation (2x + 5)(x - 2) = 0? i. - ii. -2 iii. 2 Which of the following is correct? (a) i and ii (b) ii and iii (c) i and iii (d) i, ii, and iii 11. The difference between five times a number and twice the number is 36. What is the number? (a) 5 (b) 6 (c) 12 (d) 13 12. What will the equation be when 5 is added to both sides of x + 4 = 7 ? (a) x + 8 = 9 (b) x + 9 = 12 (c) x + 6 = 8 (d) x + 6 = 8 13. Which of the following is qualitative data? (a) Religion (b) Color (c) Skill (d) All of the above Final Preparation for Annual Exam:  Class 7  Math Part 4 14. What do you call the difference between the maximum and minimum values of a set of data? (a) Mean (b) Range (c) Class width (d) Number of classes 15. If the range of the data is 38 and the class width is 5, how many classes will there be? (a) 7 (b) 7.6 (c) 8 (d) 10 One word questions 16. How many digits are there in the decimal number system? 17. In which year did William Jones first use the symbol ? 18. Who calculated the approximate value of up to the millionth decimal place? 19. If the length of a rectangle with a width of 3 meters and a length of 4 meters is increased by x meters, what will be the new area? 20. What shape is a soap wrapper? 21. How many faces does a cube have? 22. If x = a, what is ? 23. If = 5, what is the value of x? 24. What type of data is the number of fingers on a hand and the number of wheels on a bicycle? 25. What type of data is the value of ‘fifty paisa’ in Bangladeshi currency? Section B: Short Answer and Descriptive Questions (75 Marks) 1. Answer the following questions:                        2 × 13 = 26 (a) What is the decimal number 12 in binary? How many bits does it have? (b) Convert "ANUPAM" into binary code. (c) The diameter of a cylindrical pillar in your school building is 3 meters. If the perimeter of the pillar is equal to the circumference of a circle, calculate the perimeter of the pillar. (d) If the diameter of a circle is 10 cm, what is its circumference? (e) Find the LCM of . (f) Find the HCF of . (g) The length of a box is 20 cm, width is 8 cm, and height is 3 cm. Find the volume of the box.

(h) Calculate the surface area of the shape shown in the figure.

(i) The length of the first stick is 4 meters more than the length of the second stick. Calculate the length of the second stick. (j) A pond is dug daily by 16 workers. How many days will it take for 300 workers to complete the excavation? (k) The following are the marks obtained by 30 students in the mathematics annual exam in 7th grade: 80, 60, 65, 75, 80, 60, 60, 90, 95, 70, 100, 95, 85, 85, 85, 90, 98, 85, 55, 50, 90, 90, 65, 70, 70, 75, 95, 65, 75, 65. Calculate the number of classes for the given data. (l) If the classes are defined as 11-14, 15-18, etc., what is the class range? (m) Write the difference between column graphs and bar graphs. Descriptive Questions (Based on Visualization): (Answer 7 out of 10 questions. Each question carries 7 marks)                        7 × 7 = 49 1. a) What is meant by a bit? b) Represent Jumi and Rumi's scores in binary using cards. c) Convert the difference in Jumi and Rumi's scores into binary using bulbs. 2. a) What is the circumference of the coin? b) What is the area of the striker? c) What is the area of the coin? 3. a) What is the circumference of each pizza in package (i)? b) Calculate the circumference of the 3 pizzas in package (ii). c) Which package would be more beneficial to buy? 4. a) Find the cube of the first expression. b) Find the GCD of the three expressions. c) Show that the product of the GCD and LCM of the expressions equals the product of the second and third expressions. 5. Cut two pieces of paper measuring 21 cm in length and 12 cm in width using a scale. Now, roll one piece of paper along its length and the other along its width to form two concentric cylindrical shapes. a. Find the lateral surface area and volume of the cylinder formed by rolling along the length. b. Find the lateral surface area and volume of the cylinder formed by rolling along the width. 6.A cylinder has a radius of 5 cm. a. If the height of the cylinder is equal to the length of a box, find the total surface area of the cylinder. b. If the height of the cylinder is equal to the width of the box, find the volume of the cylinder. 7. The sum of two numbers is 9. The 5 times the smaller number is equal to 4 times the larger number. a. Form an equation based on the given problem. b. Find the difference between the two numbers. 8. is a quadratic equation in one variable. a. Rewrite the equation in standard form and find the values of a, b, and c. b. Solve the given equation. 10. Below are the weights (in kg) of 25 students: 45, 40.5, 32.8, 35, 42, 48, 52, 54, 47, 38, 52, 36.6, 34.5, 47.5, 38.5, 41, 37, 36, 43, 35.4, 46.2, 48.5, 36.2, 28.5, 30.4. (a) What is the range of the data? (b) Represent the data in a frequency distribution table. (c) Represent the data using a histogram and comment on it. 11. Below are the mathematics scores of 20 students in the 7th grade: 50, 60, 52, 62, 42, 32, 35, 36, 85, 80, 81, 82, 47, 46, 48, 43, 49, 50, 56, 80. (a) Create a frequency distribution table with 5 class intervals. (b) Draw a histogram from the table. Read the full article