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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 888 · 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 trapezium has parallel sides of 9 cm and 28 cm, and the distance between them is 2 cm. What is its area (in square cm)?
  2. 2.What is 64²? =
  3. 3.Write 1.6 × 10⁻³ as a decimal. =
  4. 4.What is the smallest whole number by which 5 must be multiplied to get a perfect cube?
  5. 5.What is ∛8? =
  6. 6.What amount will ₹47500 grow to in 3 years at 20% per year compound interest (in ₹)?
  7. 7.9.4 × 10² =
  8. 8.What is the difference between the compound interest and the simple interest on ₹16400 at 5% per year for 2 years (in ₹)?
  9. 9.Solve: n/5 + n/2 = 42. What is n?
  10. 10.A scooter is worth ₹27600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
  11. 11.Each edge of a cube is 11 cm. What is its total surface area (in square cm)?
  12. 12.If a + b = 11 and ab = 30, what is a² + b²?
  13. 13.The diagonals of a rhombus are 20 cm and 5 cm. What is its area (in square cm)?
  14. 14.The sum of two consecutive whole numbers is 89. What is the largest of them?
  15. 15.Find the compound interest on ₹57500 at 4% per year for 2 years, compounded every year (in ₹).
  16. 16.What is ∛15625? =
  17. 17.What is 2³? =
  18. 18.Which of these is a perfect square? (a) 111 (b) 119 (c) 100
  19. 19.What is the value of (5/9)⁻¹? =
  20. 20.Write 1.9 × 10⁻² as a decimal. =
  21. 21.How many whole numbers lie between 44² and 45²?
  22. 22.What is 12³? =
  23. 23.Use a² − b² = (a + b)(a − b) to find 82² − 52².
  24. 24.Solve: 9n + 1 = n + 33. What is n?
  25. 25.What is 13³? =
  26. 26.What is the smallest whole number by which 625 must be multiplied to get a perfect cube?
  27. 27.9.8 × 10⁶ =
  28. 28.Find the compound interest on ₹49200 at 10% per year for 2 years, compounded every year (in ₹).
  29. 29.Solve: 3(x − 2) = 2x + 7. What is x?
  30. 30.What is the smallest whole number by which 576 must be multiplied to get a perfect cube?
  31. 31.What is ∛512? =
  32. 32.Solve: m/3 + m/6 = 6. What is m?
  33. 33.Solve: 7t + 6 = 5t + 22. What is t?
  34. 34.Find the compound interest on ₹23100 at 8% per year for 1 year, compounded every year (in ₹).
  35. 35.A trapezium has parallel sides of 15 cm and 28 cm, and the distance between them is 6 cm. What is its area (in square cm)?
  36. 36.Write 1.6 × 10⁻¹ as a decimal. =
  37. 37.What amount will ₹42800 grow to in 2 years at 15% per year compound interest (in ₹)?
  38. 38.What is the value of (1/6)⁻¹? =
  39. 39.Use (a − b)² = a² − 2ab + b² to find 27².
  40. 40.Solve: 9x + 11 = 8x + 25. What is x?

Answer key

  1. 37
  2. 4096
  3. 0.0016
  4. 25
  5. 2
  6. 82080
  7. 940
  8. 41
  9. 60
  10. 15525
  11. 726
  12. 61
  13. 50
  14. 45
  15. 4692
  16. 25
  17. 8
  18. 100
  19. 9/5
  20. 0.019
  21. 88
  22. 1728
  23. 4020
  24. 4
  25. 2197
  26. 25
  27. 9800000
  28. 10332
  29. 13
  30. 3
  31. 8
  32. 12
  33. 8
  34. 1848
  35. 129
  36. 0.16
  37. 56603
  38. 6
  39. 729
  40. 14

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