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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 663 · 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.The sum of two consecutive whole numbers is 79. What is the largest of them?
  2. 2.What is the sum of the first 16 odd numbers (1 + 3 + 5 + …)?
  3. 3.A town has 13200 people. The population grows by 5% every year. What will the population be after 2 years?
  4. 4.What is ∛5832? =
  5. 5.Write (8⁵)⁹ as a single power 8ⁿ. What is n?
  6. 6.A trapezium has parallel sides of 29 cm and 18 cm, and the distance between them is 18 cm. What is its area (in square cm)?
  7. 7.What amount will ₹41600 grow to in 1 year at 8% per year compound interest (in ₹)?
  8. 8.Solve: 6(m − 1) = m + 14. What is m?
  9. 9.Each edge of a cube is 7 cm. What is its total surface area (in square cm)?
  10. 10.Write 740 in standard form as 7.4 × 10ⁿ. What is n?
  11. 11.The sum of four consecutive whole numbers is 110. What is the smallest of them?
  12. 12.Which of these is a perfect square? (a) 667 (b) 657 (c) 625
  13. 13.What is 20²? =
  14. 14.Write 4,700 in standard form as 4.7 × 10ⁿ. What is n?
  15. 15.How many whole numbers lie between 13² and 14²?
  16. 16.Solve: 5(p − 5) = 3p + 9. What is p?
  17. 17.Find the value of x² − 2xy + y² when x = 6 and y = 3.
  18. 18.Use (a + b)² = a² + 2ab + b² to find 22².
  19. 19.What is 6³? =
  20. 20.Solve: t/4 + t/2 = 21. What is t?
  21. 21.The length of a rectangle is 14 cm more than its width. Its perimeter is 64 cm. What is its width (in cm)?
  22. 22.A town has 31100 people. The population grows by 20% every year. What will the population be after 2 years?
  23. 23.Write 5.8 × 10⁻² as a decimal. =
  24. 24.Which of these is a perfect square? (a) 784 (b) 801 (c) 819
  25. 25.A father is 36 years older than his son. In 1 year, the father will be four times as old as his son. How old is the son now?
  26. 26.How many whole numbers lie between 26² and 27²?
  27. 27.What is 12³? =
  28. 28.A father is 45 years older than his son. In 4 years, the father will be four times as old as his son. How old is the son now?
  29. 29.A town has 14100 people. The population grows by 8% every year. What will the population be after 1 year?
  30. 30.What is 4³? =
  31. 31.Use a² − b² = (a + b)(a − b) to find 76² − 27².
  32. 32.Solve: 3m + 3 = m + 23. What is m?
  33. 33.The sum of four consecutive whole numbers is 202. What is the smallest of them?
  34. 34.How many whole numbers lie between 6² and 7²?
  35. 35.Write 400 in standard form as 4 × 10ⁿ. What is n?
  36. 36.What is the value of 10⁻³ (as a fraction)? =
  37. 37.Find the compound interest on ₹53000 at 20% per year for 3 years, compounded every year (in ₹).
  38. 38.Find the value of x² − 2xy + y² when x = 14 and y = 9.
  39. 39.The length of a rectangle is 13 cm more than its width. Its perimeter is 90 cm. What is its width (in cm)?
  40. 40.What is the value of 10³? =

Answer key

  1. 40
  2. 256
  3. 14553
  4. 18
  5. 45
  6. 423
  7. 44928
  8. 4
  9. 294
  10. 2
  11. 26
  12. 625
  13. 400
  14. 3
  15. 26
  16. 17
  17. 9
  18. 484
  19. 216
  20. 28
  21. 9
  22. 44784
  23. 0.058
  24. 784
  25. 11
  26. 52
  27. 1728
  28. 11
  29. 15228
  30. 64
  31. 5047
  32. 10
  33. 49
  34. 12
  35. 2
  36. 1/1000
  37. 38584
  38. 25
  39. 16
  40. 1000

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