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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 49 · 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 scooter is worth ₹11400. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
  2. 2.What is √2401? =
  3. 3.What amount will ₹35900 grow to in 1 year at 20% per year compound interest (in ₹)?
  4. 4.Solve: p/4 + p/3 = 14. What is p?
  5. 5.Write 5.9 × 10⁻⁴ as a decimal. =
  6. 6.What is √784? =
  7. 7.Use (a + b)² = a² + 2ab + b² to find 67².
  8. 8.A trapezium has an area of 26 square cm. Its parallel sides are 5 cm and 8 cm. What is the distance between them (in cm)?
  9. 9.What amount will ₹5700 grow to in 1 year at 10% per year compound interest (in ₹)?
  10. 10.Use (a + b)(a − b) = a² − b² to find 71 × 69.
  11. 11.What is 86²? =
  12. 12.What is the smallest whole number by which 45 must be multiplied to get a perfect square?
  13. 13.What is the value of 3⁴ × 3⁻⁵? =
  14. 14.Which of these is a perfect square? (a) 636 (b) 653 (c) 625
  15. 15.9.2 × 10⁴ =
  16. 16.How many whole numbers lie between 22² and 23²?
  17. 17.A cube has a volume of 6859 cubic cm. How long is each edge (in cm)?
  18. 18.What is the value of (1/9)⁻²? =
  19. 19.Each edge of a cube is 25 cm. What is its total surface area (in square cm)?
  20. 20.Write 2,20,00,000 in standard form as 2.2 × 10ⁿ. What is n?
  21. 21.Use (a + b)(a − b) = a² − b² to find 103 × 97.
  22. 22.The length of a rectangle is 4 cm more than its width. Its perimeter is 84 cm. What is its width (in cm)?
  23. 23.A cube has a volume of 512 cubic cm. How long is each edge (in cm)?
  24. 24.What is the difference between the compound interest and the simple interest on ₹8400 at 25% per year for 2 years (in ₹)?
  25. 25.A scooter is worth ₹19200. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
  26. 26.A trapezium has an area of 240 square cm. Its parallel sides are 28 cm and 12 cm. What is the distance between them (in cm)?
  27. 27.A trapezium has an area of 57 square cm. Its parallel sides are 8 cm and 11 cm. What is the distance between them (in cm)?
  28. 28.Solve: 5(n − 1) = 3n + 3. What is n?
  29. 29.Write 8⁸ × 8⁴ as a single power 8ⁿ. What is n?
  30. 30.What is the smallest whole number by which 56 must be divided to get a perfect cube?
  31. 31.Solve: p/3 + p/5 = 64. What is p?
  32. 32.A cuboid is 11 cm long, 11 cm wide and 3 cm high. What is its total surface area (in square cm)?
  33. 33.Each edge of a cube is 17 cm. What is its total surface area (in square cm)?
  34. 34.What is the sum of the first 11 odd numbers (1 + 3 + 5 + …)?
  35. 35.What is √1444? =
  36. 36.What is the smallest whole number by which 162 must be divided to get a perfect square?
  37. 37.What is the value of 2⁴? =
  38. 38.The sum of two consecutive whole numbers is 69. What is the smallest of them?
  39. 39.What is the value of 2¹⁶? =
  40. 40.A trapezium has parallel sides of 10 cm and 18 cm, and the distance between them is 8 cm. What is its area (in square cm)?

Answer key

  1. 7296
  2. 49
  3. 43080
  4. 24
  5. 0.00059
  6. 28
  7. 4489
  8. 4
  9. 6270
  10. 4899
  11. 7396
  12. 5
  13. 1/3
  14. 625
  15. 92000
  16. 44
  17. 19
  18. 81
  19. 3750
  20. 7
  21. 9991
  22. 19
  23. 8
  24. 525
  25. 10800
  26. 12
  27. 6
  28. 4
  29. 12
  30. 7
  31. 120
  32. 374
  33. 1734
  34. 121
  35. 38
  36. 2
  37. 16
  38. 34
  39. 65536
  40. 112

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