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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 475 · 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.Solve: x/3 + x/4 = 42. What is x?
  2. 2.What is ∛13824? =
  3. 3.The total surface area of a cube is 294 square cm. How long is each edge (in cm)?
  4. 4.The length of a rectangle is 6 cm more than its width. Its perimeter is 92 cm. What is its width (in cm)?
  5. 5.What is the value of 3⁴ × 3⁻³? =
  6. 6.Write 9 × 10⁻⁴ as a decimal. =
  7. 7.Solve: m/5 + m/3 = 16. What is m?
  8. 8.Use (a + b)² = a² + 2ab + b² to find 16².
  9. 9.What is √729? =
  10. 10.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
  11. 11.Which of these is a perfect square? (a) 1068 (b) 1069 (c) 1024
  12. 12.A square garden has an area of 2809 square m. How long is each side (in m)?
  13. 13.Use (a + b)² = a² + 2ab + b² to find 28².
  14. 14.A square garden has an area of 2704 square m. How long is each side (in m)?
  15. 15.What is 71²? =
  16. 16.A trapezium has parallel sides of 5 cm and 9 cm, and the distance between them is 17 cm. What is its area (in square cm)?
  17. 17.What amount will ₹10200 grow to in 1 year at 8% per year compound interest (in ₹)?
  18. 18.Find the compound interest on ₹27800 at 10% per year for 2 years, compounded every year (in ₹).
  19. 19.Write 940 in standard form as 9.4 × 10ⁿ. What is n?
  20. 20.Solve: 6y + 14 = 2y + 74. What is y?
  21. 21.A cube has a volume of 343 cubic cm. How long is each edge (in cm)?
  22. 22.What is the value of 3⁵ × 3⁻³? =
  23. 23.Solve: 6(p − 2) = 3p + 33. What is p?
  24. 24.If a + b = 13 and ab = 42, what is a² + b²?
  25. 25.The diagonals of a rhombus are 22 cm and 14 cm. What is its area (in square cm)?
  26. 26.Write 8.4 × 10⁻⁴ as a decimal. =
  27. 27.What is the sum of the first 15 odd numbers (1 + 3 + 5 + …)?
  28. 28.Find the value of x² + 2xy + y² when x = 13 and y = 11.
  29. 29.What is the value of 2⁵ × 2⁻²? =
  30. 30.The total surface area of a cube is 54 square cm. How long is each edge (in cm)?
  31. 31.What is the value of 6⁴? =
  32. 32.Write 5.6 × 10⁻² as a decimal. =
  33. 33.A cube has a volume of 125 cubic cm. How long is each edge (in cm)?
  34. 34.What is 79²? =
  35. 35.Find the value of x² − y² when x = 4 and y = 2.
  36. 36.A room is 5 m long, 3 m wide and 4 m high. What is the area of its four walls (in square m)?
  37. 37.Solve: 6(y − 2) = 2y + 20. What is y?
  38. 38.Write 110 in standard form as 1.1 × 10ⁿ. What is n?
  39. 39.The total surface area of a cube is 486 square cm. How long is each edge (in cm)?
  40. 40.Each edge of a cube is 17 cm. What is its total surface area (in square cm)?

Answer key

  1. 72
  2. 24
  3. 7
  4. 20
  5. 3
  6. 0.0009
  7. 30
  8. 256
  9. 27
  10. 29169
  11. 1024
  12. 53
  13. 784
  14. 52
  15. 5041
  16. 119
  17. 11016
  18. 5838
  19. 2
  20. 15
  21. 7
  22. 9
  23. 15
  24. 85
  25. 154
  26. 0.00084
  27. 225
  28. 576
  29. 8
  30. 3
  31. 1296
  32. 0.056
  33. 5
  34. 6241
  35. 12
  36. 64
  37. 8
  38. 2
  39. 9
  40. 1734

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