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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 823 · 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 7³? =
  2. 2.The sum of four consecutive whole numbers is 130. What is the smallest of them?
  3. 3.A trapezium has an area of 27 square cm. Its parallel sides are 20 cm and 7 cm. What is the distance between them (in cm)?
  4. 4.Find the value of x² − y² when x = 8 and y = 7.
  5. 5.Solve: 4(y − 2) = 2y + 16. What is y?
  6. 6.What is the value of 2⁹? =
  7. 7.What is 14³? =
  8. 8.What is the smallest whole number by which 392 must be divided to get a perfect cube?
  9. 9.What amount will ₹37100 grow to in 1 year at 4% per year compound interest (in ₹)?
  10. 10.The total surface area of a cube is 294 square cm. How long is each edge (in cm)?
  11. 11.Solve: 3(x − 1) = x + 15. What is x?
  12. 12.Write 4.3 × 10⁻¹ as a decimal. =
  13. 13.A cuboid is 13 cm long, 10 cm wide and 4 cm high. What is its total surface area (in square cm)?
  14. 14.Find the compound interest on ₹27500 at 12% per year for 2 years, compounded every year (in ₹).
  15. 15.The sum of two consecutive whole numbers is 27. What is the largest of them?
  16. 16.Solve: 4(n − 5) = 2n + 10. What is n?
  17. 17.Find the value of x² − 2xy + y² when x = 5 and y = 1.
  18. 18.How many whole numbers lie between 35² and 36²?
  19. 19.A cuboid is 5 cm long, 7 cm wide and 5 cm high. What is its total surface area (in square cm)?
  20. 20.What is the sum of the first 15 odd numbers (1 + 3 + 5 + …)?
  21. 21.6.2 × 10² =
  22. 22.What is the value of 2⁸? =
  23. 23.What is √1369? =
  24. 24.Which of these is a perfect square? (a) 987 (b) 961 (c) 971
  25. 25.A trapezium has an area of 90 square cm. Its parallel sides are 10 cm and 5 cm. What is the distance between them (in cm)?
  26. 26.What is the difference between the compound interest and the simple interest on ₹14200 at 10% per year for 2 years (in ₹)?
  27. 27.What is √3844? =
  28. 28.What is the value of (3/7)⁻¹? =
  29. 29.Use (a − b)² = a² − 2ab + b² to find 46².
  30. 30.A cuboid is 6 cm long, 5 cm wide and 7 cm high. What is its total surface area (in square cm)?
  31. 31.Solve: 3(p − 2) = p + 12. What is p?
  32. 32.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
  33. 33.Which of these is a perfect cube? (a) 216 (b) 269 (c) 312
  34. 34.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
  35. 35.A trapezium has an area of 470 square cm. Its parallel sides are 24 cm and 23 cm. What is the distance between them (in cm)?
  36. 36.What is 16³? =
  37. 37.The sum of two consecutive whole numbers is 11. What is the smallest of them?
  38. 38.A cuboid is 14 cm long, 6 cm wide and 7 cm high. What is its total surface area (in square cm)?
  39. 39.2.9 × 10⁶ =
  40. 40.A cube has a volume of 1728 cubic cm. How long is each edge (in cm)?

Answer key

  1. 343
  2. 31
  3. 2
  4. 15
  5. 12
  6. 512
  7. 2744
  8. 49
  9. 38584
  10. 7
  11. 9
  12. 0.43
  13. 444
  14. 6996
  15. 14
  16. 15
  17. 16
  18. 70
  19. 190
  20. 225
  21. 620
  22. 256
  23. 37
  24. 961
  25. 12
  26. 142
  27. 62
  28. 7/3
  29. 2116
  30. 214
  31. 9
  32. 864
  33. 216
  34. 4
  35. 20
  36. 4096
  37. 5
  38. 448
  39. 2900000
  40. 12

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