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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 205 · 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.Each edge of a cube is 7 cm. What is its total surface area (in square cm)?
  2. 2.Write 9⁹ ÷ 9⁴ as a single power 9ⁿ. What is n?
  3. 3.Use (a + b)(a − b) = a² − b² to find 101 × 99.
  4. 4.A father is 13 years older than his son. In 1 year, the father will be twice as old as his son. How old is the son now?
  5. 5.A town has 54400 people. The population grows by 25% every year. What will the population be after 3 years?
  6. 6.What is √3600? =
  7. 7.Solve: 6(m − 3) = 5m + 8. What is m?
  8. 8.Find the value of x² − y² when x = 5 and y = 4.
  9. 9.A cuboid is 9 cm long, 8 cm wide and 7 cm high. What is its total surface area (in square cm)?
  10. 10.What is 33²? =
  11. 11.What amount will ₹19000 grow to in 1 year at 5% per year compound interest (in ₹)?
  12. 12.What is √1225? =
  13. 13.The length of a rectangle is 2 cm more than its width. Its perimeter is 116 cm. What is its width (in cm)?
  14. 14.What is ∛1331? =
  15. 15.Solve: n/3 + n/4 = 49. What is n?
  16. 16.What is 2³? =
  17. 17.How many whole numbers lie between 36² and 37²?
  18. 18.The total surface area of a cube is 1536 square cm. How long is each edge (in cm)?
  19. 19.The length of a rectangle is 5 cm more than its width. Its perimeter is 18 cm. What is its width (in cm)?
  20. 20.If a − b = 1 and ab = 2, what is a² + b²?
  21. 21.What is √5776? =
  22. 22.The total surface area of a cube is 2400 square cm. How long is each edge (in cm)?
  23. 23.Solve: 3(n − 5) = 2n + 8. What is n?
  24. 24.The diagonals of a rhombus are 14 cm and 17 cm. What is its area (in square cm)?
  25. 25.What is the value of 3⁻² (as a fraction)? =
  26. 26.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
  27. 27.What is the value of 2¹ × 2⁻¹? =
  28. 28.What is √900? =
  29. 29.What is √7569? =
  30. 30.A room is 6 m long, 3 m wide and 5 m high. What is the area of its four walls (in square m)?
  31. 31.What is ∛4096? =
  32. 32.Use (a + b)² = a² + 2ab + b² to find 31².
  33. 33.The sum of four consecutive whole numbers is 142. What is the smallest of them?
  34. 34.Each edge of a cube is 6 cm. What is its total surface area (in square cm)?
  35. 35.A cube has a volume of 2197 cubic cm. How long is each edge (in cm)?
  36. 36.What is the difference between the compound interest and the simple interest on ₹37800 at 20% per year for 2 years (in ₹)?
  37. 37.What is 19³? =
  38. 38.A scooter is worth ₹25200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
  39. 39.What is the value of 10²? =
  40. 40.The diagonals of a rhombus are 26 cm and 7 cm. What is its area (in square cm)?

Answer key

  1. 294
  2. 5
  3. 9999
  4. 12
  5. 106250
  6. 60
  7. 26
  8. 9
  9. 382
  10. 1089
  11. 19950
  12. 35
  13. 28
  14. 11
  15. 84
  16. 8
  17. 72
  18. 16
  19. 2
  20. 5
  21. 76
  22. 20
  23. 23
  24. 119
  25. 1/9
  26. 600
  27. 1
  28. 30
  29. 87
  30. 90
  31. 16
  32. 961
  33. 34
  34. 216
  35. 13
  36. 1512
  37. 6859
  38. 22743
  39. 100
  40. 91

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