← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 717 · 40 sums
TalentJR

The method (Read, plan, check): Find the type of question first: power, square or cube, equation, identity, area or interest? Use the method from that lesson, step by step. Check: square or cube your root back, put equation answers back in, and work interest year by year.

NameDateTime takenScore ___ / 40
  1. 1.A room is 4 m long, 5 m wide and 5 m high. What is the area of its four walls (in square m)?
  2. 2.Solve: 5y + 11 = 4y + 12. What is y?
  3. 3.A trapezium has an area of 460 square cm. Its parallel sides are 20 cm and 26 cm. What is the distance between them (in cm)?
  4. 4.What amount will ₹33800 grow to in 1 year at 12% per year compound interest (in ₹)?
  5. 5.A square garden has an area of 2916 square m. How long is each side (in m)?
  6. 6.What is the smallest whole number by which 32 must be divided to get a perfect cube?
  7. 7.What is 20²? =
  8. 8.7.5 × 10⁵ =
  9. 9.How many whole numbers lie between 26² and 27²?
  10. 10.A cube has a volume of 27 cubic cm. How long is each edge (in cm)?
  11. 11.Each edge of a cube is 20 cm. What is its total surface area (in square cm)?
  12. 12.What is the value of 8⁵? =
  13. 13.Which of these is a perfect cube? (a) 2197 (b) 2310 (c) 2458
  14. 14.Which of these is a perfect cube? (a) 65 (b) 96 (c) 64
  15. 15.What is ∛2197? =
  16. 16.If a + b = 5 and ab = 4, what is a² + b²?
  17. 17.What is the difference between the compound interest and the simple interest on ₹8000 at 10% per year for 2 years (in ₹)?
  18. 18.A trapezium has parallel sides of 6 cm and 21 cm, and the distance between them is 6 cm. What is its area (in square cm)?
  19. 19.What is ∛8000? =
  20. 20.Solve: 3n + 3 = 2n + 6. What is n?
  21. 21.What is ∛9261? =
  22. 22.Use a² − b² = (a + b)(a − b) to find 78² − 14².
  23. 23.Use (a − b)² = a² − 2ab + b² to find 28².
  24. 24.What is the smallest whole number by which 343 must be multiplied to get a perfect square?
  25. 25.If a + b = 3 and ab = 2, what is a² + b²?
  26. 26.The sum of four consecutive whole numbers is 78. What is the smallest of them?
  27. 27.Which of these is a perfect square? (a) 142 (b) 130 (c) 121
  28. 28.A cuboid is 3 cm long, 5 cm wide and 9 cm high. What is its total surface area (in square cm)?
  29. 29.The total surface area of a cube is 600 square cm. How long is each edge (in cm)?
  30. 30.Use (a − b)² = a² − 2ab + b² to find 39².
  31. 31.A town has 46100 people. The population grows by 5% every year. What will the population be after 1 year?
  32. 32.What is the value of 4⁸? =
  33. 33.How many whole numbers lie between 32² and 33²?
  34. 34.A trapezium has parallel sides of 10 cm and 6 cm, and the distance between them is 3 cm. What is its area (in square cm)?
  35. 35.Use (a + b)² = a² + 2ab + b² to find 43².
  36. 36.The length of a rectangle is 2 cm more than its width. Its perimeter is 96 cm. What is its width (in cm)?
  37. 37.What is 8³? =
  38. 38.Write 7⁹ ÷ 7² as a single power 7ⁿ. What is n?
  39. 39.What is the difference between the compound interest and the simple interest on ₹41500 at 20% per year for 2 years (in ₹)?
  40. 40.A father is 18 years older than his son. In 4 years, the father will be three times as old as his son. How old is the son now?

Answer key

  1. 90
  2. 1
  3. 20
  4. 37856
  5. 54
  6. 4
  7. 400
  8. 750000
  9. 52
  10. 3
  11. 2400
  12. 32768
  13. 2197
  14. 64
  15. 13
  16. 17
  17. 80
  18. 81
  19. 20
  20. 3
  21. 21
  22. 5888
  23. 784
  24. 7
  25. 5
  26. 18
  27. 121
  28. 174
  29. 10
  30. 1521
  31. 48405
  32. 65536
  33. 64
  34. 24
  35. 1849
  36. 23
  37. 512
  38. 7
  39. 1660
  40. 5

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets