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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 359 · 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 ∛216? =
  2. 2.Solve: n/2 + n/3 = 30. What is n?
  3. 3.Find the value of x² + 2xy + y² when x = 13 and y = 12.
  4. 4.Which of these is a perfect cube? (a) 1511 (b) 1448 (c) 1331
  5. 5.Solve: 5p + 18 = p + 42. What is p?
  6. 6.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
  7. 7.A cuboid is 6 cm long, 12 cm wide and 10 cm high. What is its total surface area (in square cm)?
  8. 8.A big cube of edge 8 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
  9. 9.Each edge of a cube is 5 cm. What is its total surface area (in square cm)?
  10. 10.Write (3³)⁸ as a single power 3ⁿ. What is n?
  11. 11.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
  12. 12.Solve: 5(m − 2) = 2m + 35. What is m?
  13. 13.What is 6³? =
  14. 14.Solve: 8x + 7 = 6x + 15. What is x?
  15. 15.What is 14³? =
  16. 16.The total surface area of a cube is 294 square cm. How long is each edge (in cm)?
  17. 17.3.8 × 10⁵ =
  18. 18.A town has 4000 people. The population grows by 5% every year. What will the population be after 2 years?
  19. 19.Write (3⁸)⁹ as a single power 3ⁿ. What is n?
  20. 20.Write 4¹⁶ ÷ 4⁹ as a single power 4ⁿ. What is n?
  21. 21.What is the smallest whole number by which 117 must be divided to get a perfect square?
  22. 22.What is 12³? =
  23. 23.What is the value of 2⁶ × 2⁻¹? =
  24. 24.Solve: 6t + 19 = 5t + 33. What is t?
  25. 25.What is the value of 2⁸? =
  26. 26.A trapezium has parallel sides of 6 cm and 29 cm, and the distance between them is 6 cm. What is its area (in square cm)?
  27. 27.A square garden has an area of 64 square m. How long is each side (in m)?
  28. 28.Use (a + b)² = a² + 2ab + b² to find 25².
  29. 29.What is the smallest whole number by which 49 must be divided to get a perfect cube?
  30. 30.Find the value of x² − y² when x = 13 and y = 11.
  31. 31.What is the value of 2³? =
  32. 32.What is 30²? =
  33. 33.A big cube of edge 4 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
  34. 34.What is the value of 3⁴ × 3⁻¹? =
  35. 35.6.8 × 10⁶ =
  36. 36.A square garden has an area of 1936 square m. How long is each side (in m)?
  37. 37.What is 16²? =
  38. 38.9.4 × 10⁵ =
  39. 39.A cube has a volume of 1331 cubic cm. How long is each edge (in cm)?
  40. 40.Use a² − b² = (a + b)(a − b) to find 98² − 5².

Answer key

  1. 6
  2. 36
  3. 625
  4. 1331
  5. 6
  6. 6305
  7. 504
  8. 8
  9. 150
  10. 24
  11. 600
  12. 15
  13. 216
  14. 4
  15. 2744
  16. 7
  17. 380000
  18. 4410
  19. 72
  20. 7
  21. 13
  22. 1728
  23. 32
  24. 14
  25. 256
  26. 105
  27. 8
  28. 625
  29. 49
  30. 48
  31. 8
  32. 900
  33. 8
  34. 27
  35. 6800000
  36. 44
  37. 256
  38. 940000
  39. 11
  40. 9579

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