← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 178 · 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.What is √3481? =
  2. 2.The total surface area of a cube is 54 square cm. How long is each edge (in cm)?
  3. 3.What is the value of 10² × 10⁻²? =
  4. 4.Find the compound interest on ₹4500 at 12% per year for 1 year, compounded every year (in ₹).
  5. 5.Find the compound interest on ₹19200 at 25% per year for 3 years, compounded every year (in ₹).
  6. 6.A room is 5 m long, 3 m wide and 4 m high. What is the area of its four walls (in square m)?
  7. 7.What is the smallest whole number by which 18 must be divided to get a perfect square?
  8. 8.Find the compound interest on ₹10000 at 8% per year for 1 year, compounded every year (in ₹).
  9. 9.Use (a + b)(a − b) = a² − b² to find 99 × 81.
  10. 10.What amount will ₹8400 grow to in 2 years at 5% per year compound interest (in ₹)?
  11. 11.Solve: 8p + 17 = 3p + 72. What is p?
  12. 12.Use a² − b² = (a + b)(a − b) to find 74² − 62².
  13. 13.What is √6724? =
  14. 14.Which of these is a perfect square? (a) 396 (b) 398 (c) 361
  15. 15.Solve: m/2 + m/6 = 20. What is m?
  16. 16.The sum of two consecutive whole numbers is 47. What is the smallest of them?
  17. 17.Use (a + b)(a − b) = a² − b² to find 26 × 14.
  18. 18.Which of these is a perfect square? (a) 1424 (b) 1426 (c) 1369
  19. 19.Write 3.9 × 10⁻⁴ as a decimal. =
  20. 20.What is 4³? =
  21. 21.If a + b = 14 and ab = 33, what is a² + b²?
  22. 22.A cuboid is 8 cm long, 9 cm wide and 5 cm high. What is its total surface area (in square cm)?
  23. 23.What amount will ₹42000 grow to in 3 years at 10% per year compound interest (in ₹)?
  24. 24.What is the value of 10¹ × 10⁻⁵? =
  25. 25.A room is 5 m long, 7 m wide and 3 m high. What is the area of its four walls (in square m)?
  26. 26.A trapezium has parallel sides of 18 cm and 11 cm, and the distance between them is 12 cm. What is its area (in square cm)?
  27. 27.A town has 8000 people. The population grows by 5% every year. What will the population be after 3 years?
  28. 28.What is √2401? =
  29. 29.What is the difference between the compound interest and the simple interest on ₹13600 at 10% per year for 2 years (in ₹)?
  30. 30.Write 7¹⁴ ÷ 7⁸ as a single power 7ⁿ. What is n?
  31. 31.Solve: t/3 + t/2 = 25. What is t?
  32. 32.Use (a + b)² = a² + 2ab + b² to find 16².
  33. 33.Use (a − b)² = a² − 2ab + b² to find 22².
  34. 34.Solve: y/4 + y/5 = 18. What is y?
  35. 35.Solve: 5t + 9 = 2t + 51. What is t?
  36. 36.Write 2¹² ÷ 2³ as a single power 2ⁿ. What is n?
  37. 37.What is the smallest whole number by which 9 must be divided to get a perfect cube?
  38. 38.What is the value of (1/5)⁻²? =
  39. 39.Write 34,000 in standard form as 3.4 × 10ⁿ. What is n?
  40. 40.A trapezium has an area of 240 square cm. Its parallel sides are 18 cm and 30 cm. What is the distance between them (in cm)?

Answer key

  1. 59
  2. 3
  3. 1
  4. 540
  5. 18300
  6. 64
  7. 2
  8. 800
  9. 8019
  10. 9261
  11. 11
  12. 1632
  13. 82
  14. 361
  15. 30
  16. 23
  17. 364
  18. 1369
  19. 0.00039
  20. 64
  21. 130
  22. 314
  23. 55902
  24. 1/10000
  25. 72
  26. 174
  27. 9261
  28. 49
  29. 136
  30. 6
  31. 30
  32. 256
  33. 484
  34. 40
  35. 14
  36. 9
  37. 9
  38. 25
  39. 4
  40. 10

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