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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 795 · 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: 5(n − 1) = 2n + 1. What is n?
  2. 2.What is the difference between the compound interest and the simple interest on ₹19600 at 15% per year for 2 years (in ₹)?
  3. 3.A room is 6 m long, 4 m wide and 3 m high. What is the area of its four walls (in square m)?
  4. 4.A scooter is worth ₹49600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
  5. 5.Which of these is a perfect cube? (a) 402 (b) 343 (c) 357
  6. 6.How many whole numbers lie between 9² and 10²?
  7. 7.Use (a − b)² = a² − 2ab + b² to find 57².
  8. 8.A cuboid is 14 cm long, 9 cm wide and 6 cm high. What is its total surface area (in square cm)?
  9. 9.What is √4761? =
  10. 10.A room is 6 m long, 10 m wide and 5 m high. What is the area of its four walls (in square m)?
  11. 11.Solve: 4(n − 2) = 2n + 22. What is n?
  12. 12.Find the compound interest on ₹58200 at 12% per year for 1 year, compounded every year (in ₹).
  13. 13.Write 6.5 × 10⁻¹ as a decimal. =
  14. 14.If a − b = 3 and ab = 10, what is a² + b²?
  15. 15.What is the value of 2⁹? =
  16. 16.A cuboid is 7 cm long, 2 cm wide and 5 cm high. What is its total surface area (in square cm)?
  17. 17.Write 2.1 × 10⁻³ as a decimal. =
  18. 18.Solve: 6n + 9 = 3n + 18. What is n?
  19. 19.What is ∛4913? =
  20. 20.A big cube of edge 8 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
  21. 21.A trapezium has parallel sides of 24 cm and 23 cm, and the distance between them is 2 cm. What is its area (in square cm)?
  22. 22.What is √1225? =
  23. 23.What is the value of 3⁵? =
  24. 24.The total surface area of a cube is 2166 square cm. How long is each edge (in cm)?
  25. 25.A trapezium has parallel sides of 7 cm and 3 cm, and the distance between them is 2 cm. What is its area (in square cm)?
  26. 26.Solve: 3m + 6 = 2m + 7. What is m?
  27. 27.What is √3721? =
  28. 28.What is the value of (1/5)⁻²? =
  29. 29.A trapezium has parallel sides of 13 cm and 28 cm, and the distance between them is 12 cm. What is its area (in square cm)?
  30. 30.What is the value of 5³ × 5⁻¹? =
  31. 31.A trapezium has an area of 63 square cm. Its parallel sides are 11 cm and 10 cm. What is the distance between them (in cm)?
  32. 32.What is the value of 2¹⁵? =
  33. 33.3 × 10⁶ =
  34. 34.Find the compound interest on ₹26600 at 5% per year for 1 year, compounded every year (in ₹).
  35. 35.Which of these is a perfect cube? (a) 3185 (b) 2875 (c) 2744
  36. 36.What is ∛9261? =
  37. 37.Write 4⁹ × 4⁵ as a single power 4ⁿ. What is n?
  38. 38.A father is 10 years older than his son. In 1 year, the father will be twice as old as his son. How old is the son now?
  39. 39.A cube has a volume of 1000 cubic cm. How long is each edge (in cm)?
  40. 40.Which of these is a perfect cube? (a) 892 (b) 729 (c) 885

Answer key

  1. 2
  2. 441
  3. 60
  4. 20925
  5. 343
  6. 18
  7. 3249
  8. 528
  9. 69
  10. 160
  11. 15
  12. 6984
  13. 0.65
  14. 29
  15. 512
  16. 118
  17. 0.0021
  18. 3
  19. 17
  20. 64
  21. 47
  22. 35
  23. 243
  24. 19
  25. 10
  26. 1
  27. 61
  28. 25
  29. 246
  30. 25
  31. 6
  32. 32768
  33. 3000000
  34. 1330
  35. 2744
  36. 21
  37. 14
  38. 9
  39. 10
  40. 729

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